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Bolts 1/2-20 X 4 Hxbt SS (Jar 50)
Additional Notes
- Other sizes and quantities available by request
Features
- 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.
- 18-8 and 316 stainless steel cap screws are both made from austenitic alloy
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Height:
- 16-May in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.736 - 0.750 in.
- Fastener Height:
- 0.302 - 0.323
- Fastener Length:
- 4
- Fastener Width:
- 0.840 - 0.866
- 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:
- 0.4930 - 0.5000 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 3.25 in
- Product Length:
- 7.25 in
- Product Weight:
- 5752 g
- Product Width:
- 171.45 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 100000 - 150000 psi minimum
- Thread Per Inch:
- 20
- 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 JSBH3582 – Frequently Asked Questions
1) Is the Metallics JSBH3582 hex bolt a coarse or fine thread, and what nut will it take?
It is 1/2-20, meaning 20 threads per inch on a 1/2 inch diameter, which is the UNF fine thread pitch rather than the more common 1/2-13 coarse. It will only mate with 1/2-20 fine nuts and tapped holes. If the nuts on your job are 1/2-13, this bolt will not thread into them.
2) Will 18-8 stainless hex bolts hold up outdoors or in a washdown area?
18-8 austenitic stainless is what the JSBH3582 is made from, and it is specified for general atmospheric corrosion resistance, the kind of service you get in chemical and food-processing equipment. For aggressive chemical exposure or chloride-heavy environments, 316 stainless is the step up; 18-8 may not be enough on its own.
3) How strong is a 1/2-20 stainless hex bolt compared to a plated grade 5?
The JSBH3582 runs 100,000 to 150,000 psi minimum tensile with a 65,000 psi minimum yield, and hardness of Rockwell B95 to C32. That puts it below a grade 5 steel bolt on yield, so if the connection was engineered around a grade 5 or grade 8 fastener, do not swap in stainless without checking the load. Where corrosion is the controlling factor rather than strength, the stainless is the right call.
4) Do these stainless hex bolts qualify for a Buy American or ARRA-funded project?
The JSBH3582 is flagged both Buy American compliant and ARRA compliant, which is what a government, school district, or transit procurement file usually needs on the fastener line. Country of origin is listed as multiple.
5) What wrench size fits the head on this 1/2-20 stainless hex bolt?
The hex head measures 0.736 to 0.750 inch across the flats, so a 3/4 inch wrench or socket is the correct size. Head height runs 0.302 to 0.323 inch.
6) How many bolts come in a jar, and can I buy fewer than 50?
These ship as a jar of 50 pieces, and 50 each is the order minimum, so a jar is the smallest buy. Other sizes and quantities are available by request.
7) How much grip length do I get from a 4 inch hex bolt?
Length is 4 inches, measured under the head on a hex bolt, so that 4 inches is what you have to pass through your joint plus enough thread for the nut and washers. Stack up your material thickness, washer, and nut height before committing to this length.
How fast can I get the Metallics JSBH3582 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 JSBH3582 come with a warranty?
Absolutely. The Metallics JSBH3582 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 JSBH3582?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
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