Heavy Hex Jam Nut Manufacturers in India

  • A jam nut is a low profile type of nut typically half as tall as a standard nut. It is commonly used as a type of lockout where it is “jammed” up against a standard nut to lock the two in place.

  • Heavy Hex Jam Nut Available Size M3 – M48 and also available in all customized sizes.

  • Standard of Heavy Hex Jam Nut ASTM A182/A307 Stainless Steel 304/304H/304L Heavy Hex Jam Nut Fasteners, ASTM A182 SS 316/316Ti Heavy Hex Jam Nut Fasteners, ASTM A193 SS 317/317L/321 Heavy Hex Jam Nut, Carbon Steel ASTM A194 B6/B7 Heavy Hex Jam Nut Fasteners, Alloy Steel ASTM A320 L7/L7A/L7B Heavy Hex Jam Nut Fasteners, Copper 110 Heavy Hex Jam Nut, Duplex steel S31803/ S32205 Heavy Hex Jam Nut fastener, Hastelloy C22/C276/B2 Heavy Hex Jam Nut, Incoloy 800/800H/800HT Heavy Hex Jam Nut Fasteners, Inconel 600/601 Heavy Hex Jam Nut, Monel 400/K500 Heavy Hex Jam Nut

Heavy Hex Jam Nut Manufacturers – Top Quality Heavy Hex Jam Nut Suppliers in India!

  • Asiamet is a leading manufacturer, suppliers in India. Heavy hex jam nuts are thinner than a standard heavy hex nut but have the same dimensions across the flats and corners. Heavy hex jam nuts shorter in height than a standard hex nut hex jam nuts have the same measurements across the widths and flats.
  • They can be used to run up against a hex nut to lock the hex nut in place or as a leveling nut among other uses. These nuts offer adequate strength for many applications but this nut style does not work in some condition as it does not provide a “One Size fits all” solution.
  • Jam nuts are thin hex nuts usually used as a second nut that is “jammed” (tightened) against a full size nut or alone as a thin nut. They are used to “lock” turnbuckles and control linkages, like steering tie rods, after adjustment. Hex is short for hexagon, which means they have six sides. half height nuts, hex thin nuts (even though they are referred to as half height they are really two-thirds height). Jam nuts are used without lock washers when jammed against another nut, and may be used with lock washers when installed as a single nut.
  • When used in a “jam” configuration the jam nut is installed first and contacts the mating surface. The full size nut is installed second and contacts the jam nut. Although this may be the generally accepted practice there is still controversy as to which nut should be installed first.
Product Heavy Hex Jam Nut
Size M3 – M48 and also available in all customized sizes
Die forging Closed die forging, open die forging and hand forging.
Threads Metric, BSW, BSF, UNC, UNF
Surface Finish Blackening, Cadmium zinc plated, Galvanized, Hot dip Galvanized, Nickel
Plated, Buffing, etc.
Price Terms Ex-Works, FOB, CIF, CFR, CNF
Latest Price Call +919619672006
Email sales@asiametsteel.com

Heavy Hex Jam Nuts Manufacturers, Suppliers
  • Do you want to know how much does heavy hex jam nut cost? Do you want to know where you can get the best price and quality steel nut in India?

  • We are ready to provide you our quality products, fast delivery service and custom cut nut sizes. Send us your detailed inquiry to us, our professional staff will get back to you with our best solution and costs.

  • The experts here in this company are aimed to provide the best quality of nut as per the requirement and demand of customers.

What is a Heavy Hex Jam Nut?

Heavy hex jam nuts are thinner than a standard heavy hex nut but have the same dimension across the flats and corners. Heavy hex jam nuts have two common applications. A heavy hex jam nut can be threaded onto a bolt and run tight against the standard heavy hex nut which will lock the nut in place and prevent it from backing off. Heavy hex jam nuts are sometimes used for leveling purposes as well. Since hot-dip galvanizing typically adds 2.2 to 5 mils of thickness to the threaded portion of a fastener, galvanized heavy hex jam nuts are tapped oversize to compensate for the corrosion resistant coating on the bolts they are generally used for large diameter bolts. Some important notes from the ASME B18.2.2: – The diameter range of hex nuts and hex jam nuts is from ¼ inch to 1 1/2 inches according to standard. For heavy hex nuts and heavy hex jam nuts, the range is from ¼ inch to 4 inches.

Grade of Heavy Hex Jam Nut

  • Stainless Steel – Grade: ASTM 182 , ASTM 193, ASTM 194, B8 (304), B8C (SS347), B8M (SS316), B8T (SS321), A2, A4, 304 / 304L / 304H, 310, 310S, 316 / 316L / 316H / 316 Ti, 317 / 317L, 321 / 321H, A193 B8T 347 / 347 H, 431, 410
  • Carbon Steel – Grade: ASTM 193, ASTM 194, B6, B7/ B7M, B16, 2, 2HM, 2H, Gr6, B7, B7M
  • Alloy Steel – Grade: ASTM 320 L7, L7A, L7B, L7C, L70, L71, L72, L73
  • Brass – Grade: C270000
  • Naval Brass – Grade: C46200, C46400
  • Copper – Grade: 110
  • Duplex & Super Duplex – Grade: S31803, S32205
  • Aluminum – Grade: C61300, C61400, C63000, C64200
  • Hastelloy – Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
  • Incoloy – Grade: Incoloy 800, Inconel 800H, 800HT
  • Inconel – Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
  • Monel – Grade: Monel 400, Monel K500, Monel R-405
  • High Tensile Bolt – Grade: 9.8, 12.9, 10.9, 19.9.3
  • CUPRO-Nickel – Grade: 710, 715
  • Nickel Alloy – Grade: UNS 2200 (Nickel 200) / UNS 2201 (Nickel 201), UNS 4400 (Monel 400), UNS 8825 (Inconel 825), UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601), UNS 6625 (Inconel 625),UNS 10276 (Hastelloy C 276), UNS 8020 (Alloy 20 / 20 CB 3)

Heavy Hex Jam Nut Specification

  • Diameters: 3/8″ – 2-3/4″
  • Grades: A563 (grades A, C, and DH), A194 grade 2H
  • Standards: ISO 4035, 8675 DIN 439b, IS 1364(part 4), JIS B1181
  • Mechanical Properties: cl. 6,8,As Per Customer Specifications
  • Surface Treatment: As Per Customer Specifications

Heavy Hex Jam Nut Dimensions

Nominal Size F C H Part Numbers
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min Plain Galvanized
3⁄8 11⁄16 0.688 0.669 0.794 0.763 15⁄64 0.252 0.216
1⁄2 7⁄8 0.875 0.85 1.01 0.969 19⁄64 0.317 0.277
5⁄8 11⁄16 1.062 1.031 1.227 1.175 23⁄64 0.381 0.337
3⁄4 11⁄4 1.25 1.212 1.443 1.382 27⁄64 0.446 0.398 18404
7⁄8 17⁄16 1.438 1.394 1.66 1.589 31⁄64 0.51 0.458
1 15⁄8 1.625 1.575 1.876 1.796 35⁄64 0.575 0.519 17112 17113
11⁄8 113⁄16 1.812 1.756 2.093 2.002 39⁄64 0.639 0.579
11⁄4 2 2 1.938 2.309 2.209 23⁄32 0.751 0.687 17114 17115
13⁄8 213⁄16 2.188 2.119 2.526 2.416 25⁄32 0.815 0.747
11⁄2 23⁄8 2.375 2.3 2.742 2.622 27⁄32 0.88 0.808 17116 17117
15⁄8 29⁄16 2.562 2.481 2.959 2.828 29⁄32 0.944 0.868
13⁄4 23⁄4 2.75 2.662 3.175 3.035 31⁄32 1.009 0.929 17118 17119
17⁄8 215⁄16 2.938 2.844 3.392 3.242 11⁄32 1.073 0.989
2 31⁄8 3.125 3.025 3.608 3.449 13⁄32 1.138 1.05 17120 17121
21⁄4 31⁄2 3.5 3.388 4.041 3.862 113⁄64 1.251 1.155 19847 19846
21⁄2 37⁄8 3.875 3.75 4.474 4.275 129⁄64 1.505 1.401
23⁄4 41⁄4 4.25 4.112 4.907 4.688 137⁄64 1.634 1.522
3 45⁄8 4.625 4.475 5.34 5.102 145⁄64 1.763 1.643
31⁄4 5 5 4.838 5.774 5.515 113⁄16 1.876 1.748
31⁄2 53⁄8 5.375 5.2 6.207 5.928 115⁄16 2.006 1.87
33⁄4 53⁄4 5.75 5.562 6.64 6.341 21⁄16 2.134 1.99
4 61⁄8 6.125 5.925 7.073 6.755 23⁄16 2.264 2.112

Application of Heavy Hex Jam Nut

  • Paper and Ports
  • Chemical and Sugar
  • Oil & Gas and Defense
  • Breweries and Railway
  • Oil Mills Petrochemical
  • Shipbuilding and Offshore
  • Construction and Fertilizers
  • Power Plant and Steel Plant
  • Mining Refineries and Nuclear Power
  • Cement Engineering Co. and Government Org.

Test Certificates

  • Manufacturer Test Certificate as per EN 10204 / 3.1B
  • Raw Materials Certificate, 100% Radiography Test Report
  • Third Party Inspection Report

Quality Assurance

Asiamet all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All forged fittings are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also make custom marking on our products.