310 Stainless Steel Shoulder Bolts 

Designed for high temperature applications, 310 Stainless Steel Shoulder Bolts provide high temperature oxidation resistance to 2000°F under mild cyclic conditions. An economic alternative to nickel alloys like alloy 330 or Inconel, 310 fasteners provide slightly less strength and temperature resistance – but at a significantly lower price point.  Alloy 310 can be used in moderately caburizing, moderately oxidizing, nitriding, cementing and thermal cycling applications when not used at the maximum service temperature. 310 Stainless Steel Shoulder Bolts also have good resistance to sulfidation and other forms of hot corrosion.  Although primarily known for its high temperature properties, 310 stainless steel also provides excellent performance at cryogenic temperatures, with toughness down to -450˚F. Though 310 is ideal for high temperature use, it should not be exposed to the severe thermal shock of repeated liquid quenching or where aqueous corrosive contaminants are present.

• Good high temperature oxidation resistance to 2000°F

• High temperature stability for moderate strength applications

• Good oxidation and carburization resistant to 2000°F

• Resistance to moderate sulfidation and nitriding

• Economic alternative to high temperature nickel alloys

• 310SS chemistry & specifications

• Datasheet for 310 Stainless Steel Shoulder Bolts

Benefits 

• High temperature resistance.

• Excellent resistance to oxidation under mildly cyclic conditions.

• Good resistance to sulfidation and atmospheres where sulfur dioxide gas is encountered at elevated temperatures.

• Good resistance to thermal fatigue.

• Excellent toughness to cryogenic temperatures of -450°F.

• Low magnetic permeability.
  

• Good ductility and weldability.

Applications

• Thermal processing and high temperature furnaces rely on 310 fasteners for their high temperature and oxidation resistance in minor cyclic conditions.

• 310SS fasteners are commonly used in the petrochemical industry for their ability to provide resistance to moderately carburizing atmospheres.

• The high temperature properties of 310 fasteners make them ideal for ore processing, steel plants, power generation, and sintering.

• Cryogenic structures often use 310 Stainless Steel Shoulder Bolts for their strength at -450°F and low magnetic permeability.

Alloy 310 Fastener Types:  Bolts, Nuts, Screws, Studs, Threaded Rods, Washers

Custom Availability

• Diameter sizes:  Standard #00 – 4” in diameter / Metric M1.2 – M100

• Threads: UNC, UNF, UNJ, UNR, Rolled,Cut

• Minimum Volume – Typically 10pcs, depending on size and stock

• Custom to print

310 Stainless Steel Fastener Styles

310 Stainless Steel Screws

12 Point Screws	310 Stainless Steel 12 point screws allow for higher torque to be applied than a socket head cap screw or head head bolt, however they are be less economical due to the complex head design. Available in 1/4" or larger sizes.	•  IFI-115 •  MIL SPEC •  DIN 34822 •  DIN 34821
Button Head Cap Screws	310 Stainless Steel button head screws offer a wide clamping area and low profile. They are best for fastening material that is too thin to counter bore.	• ASME B18.3 • ASME 18.3.4M • DIN 7380 / ISO 7380
Flat Head Screws	310 Stainless Steel flat head screws are most commonly offered in an 82° countersink angle, but can be customized to other angles from 60° -120° and are designed to be flush with the surface.  Available in slotted and socket drivers. Phillips, 6-lobe, torx and tamperproof drivers in 310 Stainless Steel flat head screws can be made require special manufacturing.	•  ASME B18.3 •  ASME B18.3.6 •  DIN 963 / ISO 2009 •  DIN 965 / ISO 7046 •  DIN 7991 / ISO 10642
Hex Head Cap Screws	310 Stainless Steel hex head cap screws offer the added washer face to the bolt head which is lacking on a hex bolt and tighter dimensional tolerances. Ideal for a high clamping force applications with ease of access. Generally availabe in #2 - 1/2" sizes and metric sizes.	• ASME B18.6.3 • DIN 931 / ISO 4014 • DIN 933 / ISO 4017 • DIN 961 / ISO 8676
Pan Head Screws	310 Stainless Steel pan head screws offer a rounded top are best used for small diameter faster needs. Offered in slotted and they are ideal for low torque applications.	• ASME B18.6.3 • DIN 7985 • DIN 921 • DIN 85 / ISO 1580 • DIN 84 / ISO 1207   (cheese head) • DIN 966 / ISO 7047   (raised counter sunk)
Security Screws	Unique driver designs offer these 310 Stainless Steel screws resistance to unwanted tampering or removal due to the fact that they cannot be removed using an ordinary driver. 310 Stainless Steel security screws are available in several different drive styles, as well as custom per print.
Set Screws	310 Stainless Steel set screws are available in cup, cone, flat, dog and half-dog points. Set screws have no head and are equiped with a socket or slotted driver at one end.	• ASME B18.3 • DIN 913 / ISO 4026 • DIN 914 / ISO 4027 • DIN 915 / ISO 4028 • DIN 916 / ISO 4029
Socket Head Cap Screws	310 Stainless Steel socket head cap screws are ideal for limited access situations where there is little clearance around the screws. They offer a safe, reliable and economic solution.	• ASMET B18.3 • DIN 912 / ISO 4762 • DIN 7984
Vented Screws	310 Stainless Steel vented screws are best for vacuum environments because the hole drilled through its axis (from head through threads) allow gases and other contaminents to vent. 310 Stainless Steel vented screws are available in any style.

310 Stainless Steel Bolts

310 Stainless Steel Nuts

310 Stainless Steel Studs & Threaded Rod

Studs	310 Stainless Steel studs are fully threaded or partially threaded and made to custom lengths.	• ASME B18.31.2 • DIN 976
Threaded Rod	310 Stainless Steel threaded rod or all thread are available in lengths greater than 1 foot. Minimum order quantity is a total of 6 feet of length.	• ASME B1.1 • DIN 975
Weld Studs	310 Stainless Steel weld studs are available in both arc or capacitor discharge (CD) styles. Weld studs provide an extremely secure fastening solution when one side of the stud needs to be permanently fix to a part and the other side with the threads accessible.

310 Stainless Steel Washers