Hillman 5/16-18 in. Diameter x 1 in. Length Stainless Steel Hex Head Cap Screw, 100-Pack

Regular price $53.99

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Stainless Steel Hex Head Cap Screws, 5/16-18 x 1 in, 100-Pack

These Hillman hex head cap screws offer strong, reliable fastening with 18-8 stainless steel for superior corrosion resistance. Coarse machine threads and a washer-faced head deliver high torque capability and a secure seal in structural, automotive, and general hardware applications.


Key Features:

  • Durable Stainless Steel: 18-8 stainless resists rust and corrosion for long-lasting performance
  • High Torque Hex Head: Hex cap head with machine threads enables strong tightening with wrench or drill
  • Washer Face Seal: Built-in washer face under the head helps create a better seal
  • Partially Threaded Shank: USS pattern provides grip and alignment where needed
  • Bulk Convenience: 100 screws per boxed package for efficient project use

Specifications Table:

Specification Details
Size 5/16-18 x 1 inch
Thread Type Coarse
Material 18-8 Stainless Steel
Head Type Hex cap with washer face
Shank USS partially threaded
Number in Package 100 pack
Packaging Type Boxed
Unit of Measurement Imperial (inches)
Package Height 2 in
Package Width 3.5 in
Package Length 4.5 in
Package Weight 3.3 lbs

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: They are 5/16-18 coarse thread with a 1-inch length.


Q: Are they fully threaded?
A: They are USS partially threaded along the shank.


Q: What tools are needed for installation?
A: Tighten with a wrench or a drill using the appropriate hex socket or driver.


Q: Will these resist corrosion outdoors?
A: Yes, the 18-8 stainless steel construction provides enhanced corrosion resistance for indoor and outdoor use.


Q: How many screws come in the package?
A: 100 pieces per retail package.


Polished Utility with Enduring Stainless Poise

A sleek hex head in stainless steel brings a tailored precision to any build, elevating hardware from purely functional to thoughtfully refined. The washer-faced cap creates a clean, confident seal that feels intentional in cabinetry, shelving, or architectural accents. Style it with matte blacks or warm woods for a balanced composition that’s modern yet grounded. Consider these the quiet essentials that underscore a space with durable, luxurious integrity.


Choose Hillman stainless hex cap screws today for corrosion-resistant strength and a clean, reliable finish on every project.

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