Types of Fasteners Products

HEAVY HEX JAM NUT

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Specification
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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.

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.

Detailed Information

What is a heavy hex jam nut?

Jam nuts are inside-threaded fasteners with six sides that are only 2/3 as thick as a full-form nut. Heavy hex jam nuts are internally threaded fasteners with six sides that are only 2/3 as thick as a heavy hex nut.

Prashaant Steel & Alloys is a major producer and supplier of theHeavy Hex Jam Fasteners. TheHeavy Hex Jam Fasteners that we produce for applications in appropriate environments are crafted with absolute accuracy and dimensional quality. We at Prashaant Steel & Alloys are active in the manufacturing ofHeavy Hex Jam Fasteners superlative material, which has high resistivity against corrosion and oxidation under different conditions. Prashaant Steel & Alloys houses a production plant capable of processingHeavy Hex Jam Fasteners bulk orders of different sizes and lengths. We also take custom orders from our customers and manufacture theHeavy Hex Jam Fasteners according to their specifications and requirements. Because of their excellent formability properties, theHeavy Hex Jam Fasteners that we produce are known to have diverse applications in various industrial sectors. We customers from all over the globe at Prashaant Steel & Alloys cater to both small and large industries. Thanks to the consistency of the Stainless Steel WP11 Buttweld Fittings we have established a reputation in the industry. 

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.

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.

Specifications

Size

M6 to M100 in metric series,¼” to 4” in imperial..

Standard

ASTM / ASME / BS / DIN / JIS / BS EN ISO / IS

Specialize

As per drawing

Form

Stud Bolts (Hex, Eye, Square, (U, J,) Nuts, (Nylock,) Washer (Star, Plain), Allen Caps, Screws, (CSK, Pen Head, Philip) etc

Stainless Steel

ASTM a182 , ASTM a193, 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

Duplex Steel

2205, 31803, 32750, 32760, 2101, 2304

Alloy Steel

ASTM a320 L7, L7A, L7B, L7C, L70, L71, L72, L73

Carbon Steel

ASTM a193, ASTM 194, B6, B7/ B7M, B16, 2, 2HM, 2H, Gr6, B7, B7M

Grade of Heavy Hex Jam Nut:

 

  • Stainless Steel – Grade: ASTM a182 , ASTM a193, 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 a193, ASTM 194, B6, B7/ B7M, B16, 2, 2HM, 2H, Gr6, B7, B7M
  • Alloy Steel – Grade: ASTM a320 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: Hastelloy B2, Hastelloy B3, Hastelloy C22, Hastelloy C276, Hastelloy 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)
Fastener Applications Industries:

ASME B16.9 Degree Forged are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Socket Weld Fittings Degree Forged through a worldwide network of stock-keeping branches. Socket Weld Forged is use in various industries like :

  • Fastener uses in Paper & Pulp Companies
  • Stainless Steel Fastener uses in Oil and Gas Industry
  • Fastener Pipe Forged uses in Chemical Refinery
  • Alloy Steel Threaded Elbows Used in Pipeline
  • Fastener Pipe Forged uses in High Temperature Application
  • Fastener uses in Water Pipe Line
  • ANSI B16.9 Socket Weld Fittings Pipe Forged can be used in Nuclear power plants
  • Fastener useful for High Pressure Applications
  • Fastener Long Radius Forged uses in Fabrication and welding Job
  • Fastener uses in Food Processing and Dairy Industries
  • Fastener Short Radius Forged uses in boiler & heat exchangers
Hex Jam Nuts – Dimensions & Technical Information
Hex Jam Nuts – Dimensions (ANSI/ASME B18.2.2-1987)
Nominal or Basic Major Diameter of Thread

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Width Across Flats (F) Width Across Corners (G) Thickness of Hex Jam Nuts (H) 
Basic Max Min Max Min Basic Max Min 
1/4 0.2500 7/16 .438 .428 .505 .488 5/32 0.163 0.150
5/16 0.3125 1/2 .500 .489 .577 .557 3/16 0.195 0.180
3/8 0.3750 9/16 .562 .551 .650 .628 7/32 0.227 0.210
7/16 0.4375 11/16 .688 .675 .794 .768 1/4 0.260 0.240
1/2 0.5000 3/4 .750 .736 .866 .840 5/16 0.323 0.302
9/16 0.5625 7/8 .875 .861 1.010 .982 5/16 0.324 0.301
5/8 0.6250 15/16 .938 .922 1.083 1.051 3/8 0.387 0.363
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 24/64 0.446 0.398
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 31/64 0.510 0.458
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 35/64 .575 0.519
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 2.000 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
FAQ
What is the difference between a hex nut and a hex jam nut?

A “hex nut” is any nut that has the shape of a hexagon. Since jam nuts are in the shape of a hexagon, they are a type of hex nut. But jam nuts are made to press against another standard nut and get stuck. Nuts can loosen

What is the strongest bolt to use?

Grade 9 structural bolts, which are also called grade 9 hex cap screws, are some of the strongest structural bolts that can be used today. A typical grade 8 bolt can hold up to 150,000 PSI of tension, but a grade 9 bolt can hold up to 180,000PSI.

Are Hex Bolts stronger than screws?

Yes, bolts are stronger than screws at holding things together. This is partly because there is a washer, which spreads the load out over a bigger area. Bolts are good for heavy-duty, load-bearing tasks because they are stronger than screws.

How strong is a hex bolt?

Grade 2 hex head bolts are made of low to medium-strength carbon steel and have a tensile strength of 60,000 to 74,000 psi, depending on the diameter.

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