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Bolts 5/8-11 x 16 HXBT SS (Box 100)
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:
- 25/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.922 - 0.938 in.
- Fastener Height:
- 0.378 - 0.403
- Fastener Length:
- 16
- Fastener Width:
- 1.051 - 1.083
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Hardness:
- Rockwell B95-C32
- Language Code:
- EN
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Outside Diameter:
- 0.6170 - 0.6250 IN
- Pack Type:
- Box
- Product Group:
- Bolts
- Product Height:
- 3.25 in
- Product Length:
- 7.25 in
- Product Width:
- 171.45 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 100000 - 150000 psi minimum
- Thread Per Inch:
- 11
- Wrenching Height:
- 0.269
- Yield Strength:
- 65000 psi minimum
- Department:
- Fasteners
- Product Subgroup:
- Hex Bolts
- Product Type:
- Hex Bolt
- Type2:
- Hexagonal Bolt
- Series:
- SBHC and JSBHC
- Product Details:
- Hexagonal Bolt
- Product Material:
- 18-8 Stainless Steel
Metallics SBH99 – Frequently Asked Questions
1) What thread size and length is the Metallics SBH99 hex bolt?
The SBH99 is a 5/8-11 hex bolt, 16 inches long. The 11 is threads per inch, which is standard UNC coarse for 5/8 inch diameter, so it takes a standard 5/8-11 nut. Measured shank diameter runs 0.6170 to 0.6250 inch.
2) Is the SBH99 bolt 18-8 or 316 stainless steel?
The SBH99 is 18-8 stainless steel. Both 18-8 and 316 are austenitic alloys suited to general atmospheric corrosion resistance, but 316 is the one to specify for harsher chemical exposure. If you are fastening in a chemical process area or a coastal or chloride environment, 18-8 may not be enough and you should move to a 316 equivalent.
3) Will stainless hex bolts like these hold up structurally, or do I need a graded carbon steel bolt?
18-8 stainless is a corrosion-resistance choice, not a high-strength one. The SBH99 lists 100,000 to 150,000 psi minimum tensile and 65,000 psi minimum yield, with hardness Rockwell B95 to C32. That is well below a Grade 8 carbon bolt. For structural connections carrying calculated loads, follow the engineer's bolt spec; where the driver is wet or corrosive service, stainless is the right call.
4) How many bolts come in a box, and can I buy fewer than 100?
These ship as a box of 100 pieces, and 100 is the order minimum, so partial boxes are not an option. Metallics does offer other sizes and quantities in the SBHC and JSBHC series by request if 5/8-11 x 16 or a 100 count does not match the job.
5) Do these Metallics stainless bolts meet Buy American or ARRA requirements for a public project?
The SBH99 is flagged as both Buy American compliant and ARRA compliant in the manufacturer's data. Country of origin is listed as multiple, so if your contract requires documentation of a specific origin, request the cert for the lot you receive.
6) What are 5/8-11 x 16 stainless hex bolts actually used for?
At 16 inches long, this length is for through-bolting thick assemblies: timber or built-up members, equipment bases, standoff and anchor applications where a short cap screw will not reach. Metallics lists the field application as electrical, plumbing, heating and air conditioning work, and the 18-8 stainless makes it suitable where general atmospheric corrosion resistance matters, including chemical and food-processing equipment.
7) Are nuts and washers included with the SBH99 bolts?
The box of 100 is bolts only. You will need to order 5/8-11 nuts and 5/8 washers separately, and in stainless if you want to avoid galvanic issues with the 18-8 bolt.
How fast can I get the Metallics SBH99 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 SBH99 come with a warranty?
Absolutely. The Metallics SBH99 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 SBH99?
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installation tips, and troubleshooting. Contact Us
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