Metallics Hexagonal Bolt 3/8"-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.80
$2.56
Metallics Bolts 3/8-16 X 1-1/4 Hxbt SS

Metallics Hexagonal Bolt 3/8"-16 x 1-1/4" 18-8 Stainless Steel Hex Head

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Model: JSBH59
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$51.80
$2.56
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Metallics Industries Hexagonal Bolt 3/8"-16 x 1-1/4" 18-8 Stainless Steel Hex Head

Professional Stainless Steel Fastener Solution

The Metallics Industries Hexagonal Bolt 3/8"-16 x 1-1/4" delivers exceptional performance and reliability for electrical, plumbing, heating and air conditioning applications. This 18-8 stainless steel hexagonal bolt provides dependable fastening solutions designed for professional contractors, electricians, and industrial technicians, offering the proven quality and precision engineering that professionals trust from a leading manufacturer of electrical hardware and industrial fasteners.

Professional Features & Benefits

Superior Stainless Steel Construction

  • 18-8 Stainless Steel Material - Austenitic alloy construction provides exceptional corrosion resistance and durability for demanding industrial applications
  • High Tensile Strength Rating - 100,000-150,000 psi minimum tensile strength ensures reliable performance under heavy loads and stress conditions
  • Professional Grade Hardness - Rockwell B95-C32 hardness specification delivers optimal strength-to-ductility balance for professional installations
  • Precision Thread Specifications - 3/8"-16 thread configuration with 16 threads per inch provides secure, reliable fastening engagement

Professional Installation Design

  • Hex Head Configuration - Standard hex head design enables efficient installation with common wrenches and socket tools
  • Optimal Dimensional Specifications - 1-1/4" length with precise head dimensions (0.551-0.562" width) ensures proper fit and professional appearance
  • Chemical Processing Compatibility - Suitable for chemical and food-processing equipment applications requiring atmospheric corrosion resistance

Technical Specifications

Material: 18-8 Stainless Steel, Thread Size: 3/8"-16, Length: 1-1/4", Fastener Head Type: Hex, Fastener Head Width: 0.551-0.562 in., Fastener Head Height: 15/64 in., Outside Diameter: 0.3690-0.3750 in., Thread Per Inch: 16, Tensile Strength: 100,000-150,000 psi minimum, Yield Strength: 65,000 psi minimum, Hardness: Rockwell B95-C32, Pack Type: Jar, Product Weight: 503g, Order Minimum: 100 pieces

Installation & Usage

  1. Select appropriate hex wrench or socket tool matching the 0.551-0.562" head width specification
  2. Ensure proper thread engagement by starting the 3/8"-16 bolt by hand to prevent cross-threading
  3. Apply consistent torque using professional tools, monitoring for proper seating without over-tightening
  4. Verify secure fastening while maintaining the stainless steel finish integrity
  5. Inspect installation for proper alignment and full thread engagement
  6. Follow manufacturer torque specifications for optimal performance and longevity

Professional Applications

Ideal for:

  • Electrical Installations - Panel mounting, conduit support systems, electrical enclosure assembly, and grounding applications
  • Plumbing Systems - Pipe support brackets, fixture mounting, valve assemblies, and corrosion-resistant plumbing hardware
  • HVAC Applications - Ductwork support, equipment mounting, ventilation system assembly, and climate control installations
  • Chemical Processing Equipment - Food-grade installations, chemical-resistant assemblies, and atmospheric corrosion environments
  • Industrial Assembly - Machinery mounting, equipment fabrication, structural connections, and maintenance applications
  • Marine Environments - Saltwater-resistant installations, boat hardware, dock construction, and coastal applications
  • Construction Fastening - Structural connections, building hardware, architectural applications, and long-term installations
  • Maintenance Operations - Equipment repair, replacement fastening, retrofit installations, and service applications

Stainless Steel Advantage

The 18-8 stainless steel construction provides superior corrosion resistance compared to standard steel fasteners, making it ideal for applications requiring long-term durability in challenging environments. This austenitic alloy offers excellent atmospheric corrosion resistance while maintaining the strength characteristics needed for professional installations in electrical, plumbing, and HVAC systems.

Why Choose Metallics Industries Quality?

Metallics Industries demonstrates unwavering commitment to precision manufacturing and quality control excellence, ensuring each hexagonal bolt meets rigorous professional standards. Our comprehensive testing protocols verify tensile strength, hardness specifications, and dimensional accuracy, providing contractors, electricians, and industrial professionals with reliable fastening solutions. With specialized expertise in electrical hardware and industrial fasteners, Metallics Industries delivers the engineering excellence and material quality that demanding applications require, backed by our reputation for dependable performance in commercial, industrial, and construction environments.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
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:
1/1/04
Fastener Width:
0.628 - 0.650
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
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:
100
Order Minimum Uom Imperial:
CT
Outside Diameter:
0.3690 - 0.3750 IN
Pack Type:
Jar
Product Height:
5.75 in
Product Length:
3.5 in
Product Weight:
503 g
Product Width:
88.9 MM
Sub Division:
Electrical-E H2
Tensile Strength:
100000 - 150000 psi minimum
Thread Per Inch:
16
Yield Strength:
65000 psi minimum
Product Type:
Hexagonal Bolt
Product Group:
Fasteners
Department:
Electrical
Product Subgroup:
Bolts
Type2:
Hexagonal Bolt
Series:
SBHC and JSBHC
Product Details:
Hexagonal Bolt
Product Material:
18-8 Stainless Steel

Metallics JSBH59 – Frequently Asked Questions

1) What wrench or socket size fits the Metallics JSBH59 3/8-16 hex bolt?
Across the flats the head measures 0.551 to 0.562 inch, which is a 9/16 inch wrench or socket. Head height is 15/64 inch, so a shallow socket clears it in tight panel work. Thread is 3/8-16 with 16 threads per inch.
2) Will a 3/8-16 stainless hex bolt thread into standard strut channel nuts and 3/8 inch threaded hardware?
Yes. 3/8-16 is the standard UNC coarse thread used by strut channel nuts, beam clamps, and most 3/8 inch support hardware, and the JSBH59 is cut to that thread with 16 threads per inch. Measured shank diameter runs 0.3690 to 0.3750 inch, which is on-size for a 3/8 inch nominal fastener.
3) Is 18-8 stainless the right choice for a bolt on a rooftop or coastal install, or do I need 316?
18-8 is an austenitic stainless with good atmospheric corrosion resistance, which covers rooftop HVAC curbs, damp mechanical rooms, and exterior conduit supports. For direct salt spray or continuous chloride exposure, 316 stainless is the material to specify instead. The JSBH59 is 18-8.
4) How strong is this stainless hex bolt compared with a plated Grade 5 bolt?
Tensile runs 100,000 to 150,000 psi minimum with a 65,000 psi minimum yield, and hardness is Rockwell B95 to C32. That puts it in the same tensile neighborhood as a Grade 5 carbon bolt but with a lower yield, so it stretches sooner under load. The trade is corrosion resistance: use the stainless where rust would take out a plated bolt, and a hardened carbon bolt where clamp load is the governing concern.
5) Does the Metallics JSBH59 bolt come with nuts and washers?
No. It ships as bolts only, packed in a jar, so order 3/8-16 stainless hex nuts and matching flat or lock washers separately. Mixing a plated nut onto a stainless bolt in a wet location sets up galvanic corrosion, so keep the hardware in the same material family.
6) What is the minimum order quantity on these 3/8-16 stainless hex bolts?
They sell in a 100 piece count, supplied in a jar, with 100 as the order minimum. Jar weight is 503 g. That makes it a stock-the-truck or MRO crib item rather than a one-off purchase.
7) Can I use this bolt on a federally funded or Buy American job?
Metallics lists the JSBH59 hex bolt as both ARRA compliant and Buy American compliant. Country of origin is recorded as multiple, so if your submittal package requires a specific mill origin on the certification, request the documentation for the lot you receive.
8) Is a stainless hex bolt acceptable for food plant and chemical processing equipment?
Yes, the 18-8 austenitic alloy is called out for chemical and food-processing equipment where atmospheric corrosion resistance is needed, alongside its normal electrical, plumbing, and HVAC uses. Washdown areas are the usual reason crews specify it over a plated bolt.
9) What part number do I order for the 3/8-16 x 1-1/4 inch 18-8 stainless hex bolt from Metallics?
Model JSBH59, from the Metallics SBHC and JSBHC hex bolt series. The J prefix is the jar-packed version of the line.
10) Will stainless hex bolts gall when I tighten them?
Stainless on stainless can gall and seize if you run the nut down fast with an impact. Start the 3/8-16 thread by hand to avoid cross-threading, then torque with a hand tool at a steady rate; anti-seize on the threads helps on any assembly you expect to take apart later. At Rockwell B95-C32 the bolt is ductile enough to strip if over-torqued.
How fast can I get the Metallics JSBH59 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 JSBH59 come with a warranty?
Absolutely. The Metallics JSBH59 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 JSBH59?
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
Why buy the Metallics JSBH59 from ZenSupply?
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