Translation missing: en.sections.collection_template.title: Nut
Solid Connections Start Here – Buy Industrial Nuts Online at The Tools Man
For secure fastening that holds under pressure, explore our collection to Buy Industrial Nuts Online from The Tools Man. Our inventory includes high-strength Threaded & Hex Fasteners designed for mechanical integrity across industrial, automotive, and construction use.
Built to Withstand the Toughest Conditions
- Hex nuts, lock nuts, and wing nuts for diverse applications
- Stainless steel, zinc-plated, and alloy materials for corrosion resistance
- Metric and imperial thread sizes
- Heavy-duty construction to withstand vibration, torque, and load stress
- Precision machining for secure threading
From small repairs to large builds, these fasteners offer uncompromising grip.
Use Cases Across Every Industry
- Machinery assembly and repairs
- Steel frame fabrication and bolting
- HVAC and plumbing installations
- Automotive and heavy vehicle repairs
Whatever your need, we have a nut for every bolt.
Why Choose The Tools Man?
- A vast inventory of industry-standard fasteners
- Durable materials that resist stripping and wear
- Competitive pricing on bulk orders
- Precise specifications to match every job
- Dependable shipping and customer service
Our fasteners are trusted by professionals who can’t afford failure.
Lock It In
Get reliable fastening that lasts. Our industrial nuts are the backbone of strong, safe builds.
Secure your structure – Buy Industrial Nuts Online at The Tools Man and find the perfect Threaded & Hex Fasteners built for durability.
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Flare Nut, Brass
SKU G5037426Categories Nut , Raw MaterialsDescription Flare Nut, Connection Size 1/4 in, Inside Dia. 1/4 in, Length 1/2 in, Max. Working Pressure 700 psi, Brass, For Use With All CFC, HCFC and HFC RefrigerantsgraingerSKU: 38N869, mscSKU: , zoro_no: G5037426, mongo_id: 65bbe6b23aaddbd5a904965e
$2.24 / eachWeb priceFlare Nut, BrassSKU G5037426Categories Nut , Raw MaterialsDescription Flare Nut, Connection Size 1/4 in, Inside Dia. 1/4 in, Length 1/2 in, Max. Working Pressure 700 psi, Brass, For Use With All CFC, HCFC and HFC RefrigerantsgraingerSKU: 38N869, mscSKU: , zoro_no: G5037426, mongo_id: 65bbe6b23aaddbd5a904965e
$2.24 / eachWeb price -
Flange NutSKU G4184629Categories NutDescription Flange Nut$1.69 / eachWeb price
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Serrated Lock Nut, M5-8, 18-8 Stainless Steel, Not Graded, NL-19, 13 mm Ht, 25 PK
SKU G8480355Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M5-8, Hex Width 18 mm, Hex Height 13 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 18 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF22, mscSKU: , zoro_no: G8480355, mongo_id: 65bbe85622d7a989a98ed348
$19.44 / eachWeb priceSerrated Lock Nut, M5-8, 18-8 Stainless Steel, Not Graded, NL-19, 13 mm Ht, 25 PKSKU G8480355Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M5-8, Hex Width 18 mm, Hex Height 13 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 18 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF22, mscSKU: , zoro_no: G8480355, mongo_id: 65bbe85622d7a989a98ed348
$19.44 / eachWeb price -
Serrated Lock Nut, M6-1.00, 18-8 Stainless Steel, Not Graded, NL-19, 10 mm Ht, 25 PK
SKU G8480407Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M6-1.00, Hex Width 14 51/64 mm, Hex Height 10 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 14.8 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF21, mscSKU: , zoro_no: G8480407, mongo_id: 65bbe8339a749db82277aeca
$17.11 / eachWeb priceSerrated Lock Nut, M6-1.00, 18-8 Stainless Steel, Not Graded, NL-19, 10 mm Ht, 25 PKSKU G8480407Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M6-1.00, Hex Width 14 51/64 mm, Hex Height 10 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 14.8 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF21, mscSKU: , zoro_no: G8480407, mongo_id: 65bbe8339a749db82277aeca
$17.11 / eachWeb price -
Serrated Lock Nut, M5-0.80, 18-8 Stainless Steel, Not Graded, NL-19, 8 mm Ht, 100 PK
SKU G8480319Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M5-0.8, Hex Width 11 mm, Hex Height 8 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 11 mm, Pack Size Small Pack, Package Quantity 100graingerSKU: 53MF20, mscSKU: , zoro_no: G8480319, mongo_id: 65bbe98822d7a989a995fea2
$53.49 / eachWeb priceSerrated Lock Nut, M5-0.80, 18-8 Stainless Steel, Not Graded, NL-19, 8 mm Ht, 100 PKSKU G8480319Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M5-0.8, Hex Width 11 mm, Hex Height 8 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 11 mm, Pack Size Small Pack, Package Quantity 100graingerSKU: 53MF20, mscSKU: , zoro_no: G8480319, mongo_id: 65bbe98822d7a989a995fea2
$53.49 / eachWeb price -
Serrated Lock Nut, M12-1.75, A2 Stainless Steel, Not Graded, NL-19, 18 mm Ht, 10 PK
SKU G8480197Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M12-1.75, Hex Width 26 45/64 mm, Hex Height 18 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 26.7 mm, Pack Size Small Pack, Package Quantity 10graingerSKU: 53MF24, mscSKU: , zoro_no: G8480197, mongo_id: 65bbe7903aaddbd5a90a1324
$25.19 / eachWeb priceSerrated Lock Nut, M12-1.75, A2 Stainless Steel, Not Graded, NL-19, 18 mm Ht, 10 PKSKU G8480197Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M12-1.75, Hex Width 26 45/64 mm, Hex Height 18 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 26.7 mm, Pack Size Small Pack, Package Quantity 10graingerSKU: 53MF24, mscSKU: , zoro_no: G8480197, mongo_id: 65bbe7903aaddbd5a90a1324
$25.19 / eachWeb price -
Serrated Lock Nut, M10-1.50, 18-8 Stainless Steel, Not Graded, NL-19, 10 mm Ht, 25 PK
SKU G8480425Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M10-1.5, Hex Width 22 mm, Hex Height 10 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 22 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF23, mscSKU: , zoro_no: G8480425, mongo_id: 65bbe5813aaddbd5a9fc9f64
$33.24 / eachWeb priceSerrated Lock Nut, M10-1.50, 18-8 Stainless Steel, Not Graded, NL-19, 10 mm Ht, 25 PKSKU G8480425Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size M10-1.5, Hex Width 22 mm, Hex Height 10 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 22 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF23, mscSKU: , zoro_no: G8480425, mongo_id: 65bbe5813aaddbd5a9fc9f64
$33.24 / eachWeb price -
Serrated Lock Nut, #8-32, 18-8 Stainless Steel, Not Graded, NL-19, 11/64 in Ht, 50 PK
SKU G8480188Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #8-32, Hex Width 11/32 in, Hex Height 11/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.344 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF26, mscSKU: , zoro_no: G8480188, mongo_id: 65bbee24526e052139af237f
$22.49 / eachWeb priceSerrated Lock Nut, #8-32, 18-8 Stainless Steel, Not Graded, NL-19, 11/64 in Ht, 50 PKSKU G8480188Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #8-32, Hex Width 11/32 in, Hex Height 11/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.344 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF26, mscSKU: , zoro_no: G8480188, mongo_id: 65bbee24526e052139af237f
$22.49 / eachWeb price -
Serrated Lock Nut, #6-32, 18-8 Stainless Steel, Not Graded, NL-19, 11/64 in Ht, 50 PK
SKU G8480416Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #6-32, Hex Width 15/16 in, Hex Height 11/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.938 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF25, mscSKU: , zoro_no: G8480416, mongo_id: 65bbea2822d7a989a99995ba
$27.74 / eachWeb priceSerrated Lock Nut, #6-32, 18-8 Stainless Steel, Not Graded, NL-19, 11/64 in Ht, 50 PKSKU G8480416Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #6-32, Hex Width 15/16 in, Hex Height 11/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.938 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF25, mscSKU: , zoro_no: G8480416, mongo_id: 65bbea2822d7a989a99995ba
$27.74 / eachWeb price -
Serrated Lock Nut, 5/16"-18, 18-8 Stainless Steel, Not Graded, NL-19, 9/32 in Ht, 50 PK
SKU G8480258Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size 5/16 In.-18, Hex Width 1/2 in, Hex Height 9/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.5 in, Pack Size Small Pack, Package Quantity 50$36.44 / eachWeb priceSerrated Lock Nut, 5/16"-18, 18-8 Stainless Steel, Not Graded, NL-19, 9/32 in Ht, 50 PKSKU G8480258Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size 5/16 In.-18, Hex Width 1/2 in, Hex Height 9/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.5 in, Pack Size Small Pack, Package Quantity 50$36.44 / eachWeb price -
Serrated Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, NL-19, 11/32 in Ht, 25 PK
SKU G8480221Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size 3/8 In.-16, Hex Width 9/16 in, Hex Height 11/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.563 in, Pack Size Small Pack, Package Quantity 25graingerSKU: null, mscSKU: null, zoro_no: G8480221, mongo_id: 65bbe6513aaddbd5a9020507
$28.24 / eachWeb priceSerrated Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, NL-19, 11/32 in Ht, 25 PKSKU G8480221Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size 3/8 In.-16, Hex Width 9/16 in, Hex Height 11/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.563 in, Pack Size Small Pack, Package Quantity 25graingerSKU: null, mscSKU: null, zoro_no: G8480221, mongo_id: 65bbe6513aaddbd5a9020507
$28.24 / eachWeb price -
Serrated Lock Nut, #14-20, 18-8 Stainless Steel, Not Graded, NL-19, 15/64 in Ht, 50 PK
SKU G8480346Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #14-20, Hex Width 7/16 in, Hex Height 15/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.438 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF29, mscSKU: , zoro_no: G8480346, mongo_id: 65bbe8ab22d7a989a9909e24
$26.19 / eachWeb priceSerrated Lock Nut, #14-20, 18-8 Stainless Steel, Not Graded, NL-19, 15/64 in Ht, 50 PKSKU G8480346Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #14-20, Hex Width 7/16 in, Hex Height 15/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.438 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF29, mscSKU: , zoro_no: G8480346, mongo_id: 65bbe8ab22d7a989a9909e24
$26.19 / eachWeb price -
Serrated Lock Nut, 1/2"-13, 18-8 Stainless Steel, Not Graded, NL-19, 29/64 in Ht, 25 PK
SKU G8480267Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size 1/2 In.-13, Hex Width 3/4 in, Hex Height 29/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.75 in, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF32, mscSKU: , zoro_no: G8480267, mongo_id: 65bbe7903aaddbd5a90a1326
$41.74 / eachWeb priceSerrated Lock Nut, 1/2"-13, 18-8 Stainless Steel, Not Graded, NL-19, 29/64 in Ht, 25 PKSKU G8480267Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size 1/2 In.-13, Hex Width 3/4 in, Hex Height 29/64 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.75 in, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF32, mscSKU: , zoro_no: G8480267, mongo_id: 65bbe7903aaddbd5a90a1326
$41.74 / eachWeb price -
Serrated Lock Nut, #10-32, 18-8 Stainless Steel, Not Graded, NL-19, 7/32 in Ht, 50 PK
SKU G8480431Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #10-32, Hex Width 3/8 in, Hex Height 7/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.375 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF27, mscSKU: , zoro_no: G8480431, mongo_id: 65bbe96322d7a989a99518f1
$27.31 / eachWeb priceSerrated Lock Nut, #10-32, 18-8 Stainless Steel, Not Graded, NL-19, 7/32 in Ht, 50 PKSKU G8480431Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #10-32, Hex Width 3/8 in, Hex Height 7/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.375 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF27, mscSKU: , zoro_no: G8480431, mongo_id: 65bbe96322d7a989a99518f1
$27.31 / eachWeb price -
Serrated Lock Nut, #10-24, 18-8 Stainless Steel, Not Graded, NL-19, 7/32 in Ht, 50 PK
SKU G8480398Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #10-24, Hex Width 3/8 in, Hex Height 7/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.5 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF28, mscSKU: , zoro_no: G8480398, mongo_id: 65bbe7443aaddbd5a90847f8
$27.31 / eachWeb priceSerrated Lock Nut, #10-24, 18-8 Stainless Steel, Not Graded, NL-19, 7/32 in Ht, 50 PKSKU G8480398Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 18-8, Thread Size #10-24, Hex Width 3/8 in, Hex Height 7/32 in, Lock Type Serrated, Dimensional Standards ASME B18.2.2, Material Quality Standards ASTM B18.2.2, System of Measurement Inch, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 0.5 in, Pack Size Small Pack, Package Quantity 50graingerSKU: 53MF28, mscSKU: , zoro_no: G8480398, mongo_id: 65bbe7443aaddbd5a90847f8
$27.31 / eachWeb price -
Serrated Lock Nut, M8-1.25, 316 Stainless Steel, Not Graded, NL-19, 13 mm Ht, 25 PK
SKU G8480206Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 316, Thread Size M8-1.25, Hex Width 18 mm, Hex Height 13 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 18 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF34, mscSKU: , zoro_no: G8480206, mongo_id: 65bbe6953aaddbd5a903ce23
$43.56 / eachWeb priceSerrated Lock Nut, M8-1.25, 316 Stainless Steel, Not Graded, NL-19, 13 mm Ht, 25 PKSKU G8480206Categories NutDescription Lock Nut, Finish NL-19, Material Stainless Steel, Material Grade/Class 316, Thread Size M8-1.25, Hex Width 18 mm, Hex Height 13 mm, Lock Type Serrated, Dimensional Standards DIN 6923, Material Quality Standards ASTM B18.2.2, System of Measurement Metric, Hex Type Flange Hex, Thread Direction Right Hand, Flange Diameter 18 mm, Pack Size Small Pack, Package Quantity 25graingerSKU: 53MF34, mscSKU: , zoro_no: G8480206, mongo_id: 65bbe6953aaddbd5a903ce23
$43.56 / eachWeb price