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Bolts 3/8-24 x 4 HXBT SS (Jar 50)
Additional Notes
- Other sizes and quantities available by request
Features
- 18-8 and 316 stainless steel cap screws are both made from austenitic alloy
- Used in products that require general atmospheric corrosion resistance, such as chemical and food-processing equipment. Some chemical environments may require special corrosion resistant materials and precautions.
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Height:
- 15/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.226 - 0.243
- Fastener Length:
- 4
- Fastener Width:
- 0.628 - 0.650
- Hardness:
- Rockwell B95-C32
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Bolt_Dom_18-8_SS_316_SS.pdf
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- EA
- Outside Diameter:
- 0.3690 - 0.3750 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 3116 g
- Product Width:
- 114.3 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 100000 - 150000 psi minimum
- Thread Per Inch:
- 24
- Yield Strength:
- 65000 psi minimum
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- SBHC and JSBHC
- Product Details:
- Hexagonal Bolt
- Product Material:
- 18-8 Stainless Steel
Metallics JSBH291 – Frequently Asked Questions
1) Is the Metallics JSBH291 hex bolt a fine thread or coarse thread 3/8 inch bolt?
Fine thread. The JSBH291 is 3/8-24, so 24 threads per inch, which is the UNF pitch rather than the 3/8-16 coarse pitch. It will not thread into a 3/8-16 nut or tapped hole, so match it to fine-thread nuts and couplings.
2) How strong is the Metallics JSBH291 stainless hex bolt?
Tensile strength runs 100,000 to 150,000 psi minimum with a 65,000 psi minimum yield, and hardness is Rockwell B95 to C32. That is typical 18-8 stainless cap screw strength, below a hardened Grade 5 or Grade 8 carbon steel bolt, so on high-tension structural connections check the engineer's spec before substituting stainless for a graded steel bolt.
3) What hole size do I need to drill for the Metallics JSBH291 bolt?
Shank outside diameter is 0.3690 to 0.3750 inch, so a nominal 3/8 inch hole is a tight slip fit and a 13/32 inch hole gives normal clearance. The 4 inch length is the bolt length under the head, so add up your material thickness plus washers and nut to confirm you have enough thread showing.
4) Should I use 18-8 or 316 stainless hex bolts for a food processing or washdown area?
Both 18-8 and 316 are austenitic stainless cap screws and both are used where general atmospheric corrosion resistance is called for, including chemical and food-processing equipment. The JSBH291 is the 18-8 version. Where the environment involves chlorides or aggressive chemicals, step up to 316 or a specialty corrosion resistant alloy instead.
5) How are these Metallics stainless hex bolts packaged and what is the minimum order?
They ship in a jar of 50 pieces, and 50 each is the order minimum. Shipping weight of the jar is listed at 3,116 g. Other sizes and quantities are available by request.
6) Do these bolts meet Buy American and ARRA requirements for a public project?
The JSBH291 is flagged compliant for both Buy American and ARRA. Country of origin is listed as multiple, so if your contract requires documented origin on each shipment, specify that at order time.
How fast can I get the Metallics JSBH291 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JSBH291 come with a warranty?
Absolutely. The Metallics JSBH291 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics JSBH291?
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installation tips, and troubleshooting. Contact Us
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