Minerallac 3/8-16 x 1-1/2" Hex Head Cap Screw 18-8 Stainless Steel Partial Thread
Professional Grade Fastening Solution for Demanding Applications
The Minerallac 3/8-16 x 1-1/2" Hex Head Cap Screw delivers reliable fastening performance with 18-8 stainless steel construction and partial threading design. This professional-grade hex head cap screw provides superior corrosion resistance and durability for electrical installations, industrial applications, and outdoor environments where reliable fastening is essential.
Professional Features & Benefits
- 18-8 Stainless Steel Construction: Provides excellent corrosion resistance and long-lasting durability in harsh environments and outdoor applications.
- 3/8-16 Thread Size: Standard coarse threading ensures secure engagement and reliable holding power for demanding fastening applications.
- 1-1/2" Length: Optimal length provides sufficient engagement depth while accommodating various material thicknesses and assembly requirements.
- Hex Head Design: Enables efficient installation and removal with standard hex tools, providing reliable torque transfer and professional appearance.
- Partial Threading: Combines threaded engagement area with smooth shank section for optimal clamping force and reduced material stress.
- Silver Finish: Professional appearance complements stainless steel construction while maintaining corrosion resistance properties.
Technical Specifications
- Country Of Origin: Thailand
- Head Color: Silver
- Head Height: 15/64
- Head Type: Hex Head
- Head Width: 16-Sep
- Product Length: 1-1/2 in
- Product Material: 18-8 Stainless Steel
- Product Size: 3/8-16 x 1-1/2
- Product Type: Hex Cap Screw
- Thread Size: 16
- Thread Type: Coarse
Professional Applications
- Electrical Panel and Enclosure Assembly
- Industrial Equipment Mounting
- Outdoor Installation Projects
- Commercial Building Construction
- Marine and Coastal Applications
- Food Service Equipment Assembly
- HVAC System Installation
Why Choose Minerallac Quality?
Minerallac hex head cap screws provide professional-grade reliability with 18-8 stainless steel construction that ensures long-term performance in demanding environments. The precision manufacturing and quality materials deliver consistent fastening performance you can trust for critical applications.
Manufacturer Resources
Product Specs
- Head Color:
- Silver
- Head Height:
- 15/64
- Head Type:
- Hex Head
- Head Width:
- 16-Sep
- Product Length:
- 1-1/2 in
- Product Material:
- 18-8 Stainless Steel
- Product Size:
- 3/8-16 x 1-1/2
- Product Type:
- Hex Bolt
- Thread Size:
- 16
- Thread Type:
- Coarse
- Department:
- Electrical
- Product Subgroup:
- Hex Bolts & Nuts
- Product Group:
- Hangers, Supports & Fasteners
Minerallac 74424J – Frequently Asked Questions
1) Is the Minerallac 74424J cap screw fully threaded or partial thread?
Partial thread. The 3/8-16 x 1-1/2 inch screw carries a smooth shank under the head with threads running up from the point, which is what you want when the shank passes through a clearance hole and you are clamping two parts together. If you need thread engagement along the full 1-1/2 inches, for example into a thin tapped channel at the far end, choose a fully threaded screw or a threaded rod stud instead.
2) What nut and thread pitch do I pair with a 3/8-16 stainless cap screw?
Thread is 3/8-16, UNC coarse, so it mates with any standard 3/8-16 coarse nut, strut nut, or tapped 3/8-16 hole. Match the nut in stainless as well: mixing a plain steel nut onto a stainless screw outdoors sets up the galvanic corrosion you bought stainless to avoid. Coarse thread also tolerates job-site dirt and burrs better than fine thread.
3) What size wrench or socket do I need for a Minerallac 3/8-16 hex cap screw?
The 74424J is a 3/8-16 hex cap screw with a hex head, and a 3/8 inch hex cap screw takes a 9/16 inch wrench or socket. Head height is 15/64 inch, so it sits low enough to clear most strut and channel nuts without a special driver.
4) Will 18-8 stainless hex cap screws hold up outdoors or near the coast?
18-8 stainless is the standard austenitic grade (the 300 series family) and resists weather, washdown, and general outdoor corrosion well, which is why these are used on exterior enclosures, HVAC equipment and marine or coastal work. In direct, constant salt spray, 316 stainless is the more corrosion resistant choice. The silver finish here is the bare stainless itself, not a plating that can wear through.
5) Is the Minerallac 74424J sold individually or in a pack?
These 3/8-16 x 1-1/2 inch stainless hex cap screws come 100 to a jar under part number 74424J, which is the format most electrical and MRO stockrooms buy for bin stock rather than loose count.
6) Can I use these stainless cap screws in a food service or washdown area?
Yes. The 18-8 stainless construction is why these get used on food service equipment assembly and other washdown environments, where a zinc plated screw would rust out at the first chemical cleaning. The bare stainless surface has no coating to chip into product.
How fast can I get the Minerallac 74424J 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 Minerallac 74424J come with a warranty?
Absolutely. The Minerallac 74424J 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 Minerallac 74424J?
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 Minerallac 74424J from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
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every order.
Our team is always ready to help you choose the right product for your project.