SS Hex Jam Nut Supplier in India

Stainless Steel Jam Nut

Hex Jam Nuts
Specification of Stainless Steel jam Nut
DIN Standard | B.S. DIN 933, DIN 931, DIN 934, DIN 912, DIN 603, DIN 6923, DIN 970, DIN 7981, DIN 7982, DIN916, DIN 913, DIN 7985 |
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UTS – Unified Thread Standard | UNC, UNF, UNEF, UNS, NPT, NPTF |
Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
Tolerance | +/-0.01mm to +/-0.05mm |
Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
DIN standard | DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315 |
British standards | BS 57 |
Size |
Stainless Steel Lock Nuts M2, M3, (M3.5), M4, M5, M6, M8, M10, M12, (M14), M16, (M18), M20, (M22), M24, (M27), M30, M33, M36, M42, (M45), M48 to M160 and Custom Sizes |
Grade | 18-8 Stainless Steel, 4.8, 8.8, A2, A4, A2-70; A4-70; A4-80 Lock Nuts |
Length | 3 mm to 200 mm |
Stainless Steel Threads: | Metric, Metric Fine, BSW, UNF, UNC, BA, BSF and BSCY (cycle) threads or as required |
Standard: |
DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards |
Type | Pan/ Round/ Oval/ countersunk/ Truss head |
Head | Pan head, flat head, oval head, hex head, phillips head |
Finishing: | Zinc (yellow, white, blue, black), black oxide Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET |
Finish | Per ASTM A380/A380M |
Production process | Wire DraLock, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
Surface Coating: |
All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE. |
Surface treatment |
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Top Manufacturers | SPAX® Screws, GKW, Unbrako, Kundan, APL, Sundaram Precision, Infasco, EBY Fastener Etc. |
Packing: | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
Why choose us? |
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Test Certificate: |
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Uses & application | Railway, Wind tower, Nuclear power, Automotive industry, Construction, Electronic industry |
Types Of SS Hex Jam Nut

Jam Nut Grade 8

Heavy Hex Jam Nut Galvanized

Jam Nylock Nut

1/4 Ss Jam Nut

Hex Jam Nut Grade 8

Unf Jam Nut

3 Hex Jam Nut

4 Inch Jam Nut

Hex Jam Nut Din 936

Stainless Steel Jam Nut

Hex Jam Nuts

Metric Jam Nylock Nut
Jam Nuts Dimensions
Nut Size |
Width | Thickness | |
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Across Flats |
Across Corners |
Basic | |
1/4 | 7/16 | 1/2 | 5/32 |
5/16 | 1/2 | 9/16 | 3/16 |
3/8 | 9/16 | 41/64 | 7/32 |
7/16 | 11/16 | 25/32 | 1/4 |
1/2 | 3/4 | 55/64 | 5/16 |
9/16 | 7/8 | 1 | 5/16 |
5/8 | 15/16 | 1 1/16 | 3/8 |
3/4 | 1 1/8 | 1 17/64 | 27/64 |
7/8 | 1 5/16 | 1 31/64 | 31/64 |
1 | 1 1/2 | 1 11/16 | 35/64 |
1 1/8 | 1 11/16 | 1 29/32 | 39/64 |
1 1/4 | 1 7/8 | 2 7/64 | 23/32 |
1 3/8 | 2 1/16 | 2 21/64 | 25/32 |
1 1/2 | 2 1/4 | 2 17/32 | 27/32 |
Hex Jam Nuts Dimension Chart
Nominal Size or Basic Major Thread Diameter |
F | G | H | ||||||
---|---|---|---|---|---|---|---|---|---|
Width Across Flats |
Width Across Corners |
Thickness | |||||||
Basic | Max | Min | Max | Min | Basic | Max | Min | ||
1/4 | .2500 | 7/16 | .438 | .428 | .505 | .488 | 5/32 | .163 | .150 |
5/16 | .3125 | 1/2 | .500 | .489 | .577 | .557 | 3/16 | .195 | .180 |
3/8 | .3750 | 9/16 | .562 | .551 | .650 | .628 | 7/32 | .227 | .210 |
7/16 | .4375 | 11/16 | .688 | .675 | .794 | .768 | 1/4 | .260 | .240 |
1/2 | .5000 | 3/4 | .750 | .736 | .866 | .840 | 5/16 | .323 | .302 |
9/16 | .5625 | 7/8 | .875 | .851 | 1.010 | .982 | 5/16 | .324 | .301 |
5/8 | .6250 | 15/16 | .938 | .922 | 1.093 | 1.051 | 3/8 | .387 | .363 |
3/4 | .7500 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 27/64 | .446 | .398 |
7/8 | .8750 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 31/64 | .510 | .458 |
1 | 1.0000 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 35/64 | .575 | .519 |
1-1/8 | 1.1250 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 39/64 | .639 | .579 |
1-1/4 | 1.2500 | 1/7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 23/32 | .751 | .687 |
1-3/8 | 1.3750 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 25/32 | .815 | .747 |
1-1/2 | 1.5000 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 27/32 | .880 | .808 |
1-3/4 | 1.7500 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.893 | 31/32 | 1.009 | .929 |
2 | 2.0000 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 1-3/32 | 1.138 | 1.050 |
2-1/4 | 2.2500 | 3-1/2 | 3.500 | 3.388 | 4.041 | 3.862 | 1-13/64 | 1.251 | 1.155 |
2-1/2 | 2.5000 | 3-7/8 | 3.875 | 3.750 | 4.474 | 4.275 | 1-29/64 | 1.505 | 1.401 |
SS Jam Nut Properties
Description | A six sided internally threaded fastener which is only 2/3 he thickness of a full form nut. |
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Applications & Advantages |
Jam nuts are tightened against the work surface and a heavy hex nut is tightened against the jam nut to keep it from loosening. |
Material | Steel: Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements: Phosphorus: .12% max Carbon: .47% max Sulfur: .23% max Stainless: Nuts shall be made from one of the following austenitic stainless alloys" 303, 303SE, 304 or XM7, all of which have a chromium content of 18% and a nickel content of 8%. |
Heat Treatment | The austenitic alloys develop their strength through work hardening during the manufacturing process, as seen from their hardness properties below. The only heat treatment normally available on austenitic stainless steel alloys is annealing, which is done at approximately 1900°F to a dead soft condition and is not normally thermally reversible. |
Core Hardness | Steel: Rockwell B68 - C32 Stainless: Rockwell B95 - C32 |
Proof Load | Steel: Course thread: 54,000 psi Fine Thread: 48,000 psi Stainless: 1/4 thru 1/2 inch - 60,000 psi |