Hillman 1/4-20 in. Diameter x 1/2 in. Length Stainless Steel Hex Head Cap Screw, 100-Pack

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Stainless Steel Hex Head Cap Screws, 1/4-20 x 1/2 in, 100-Pack

Durable Hillman hex head cap screws made from 18-8 stainless steel for strong, corrosion-resistant fastening. Coarse machine threads and washer-face heads deliver high torque capability and a secure seal for general construction, machinery, and repair projects.


Key Features:

  • Corrosion Resistance: 18-8 stainless steel construction withstands moisture and outdoor environments
  • High Torque Capability: Hex cap head and machine threads allow secure tightening with a wrench or drill
  • Better Seal: Washer face under the head provides improved load distribution and sealing
  • Versatile Use: Coarse, partially threaded shank suitable for use with nuts or tapped holes
  • Bulk Value: Convenient 100-pack for jobsite or shop inventory

Specifications Table:

Specification Details
Size 1/4-20 x 1/2 inch
Diameter 1/4 inch
Thread Count 20
Length 1/2 inch
Material 18-8 Stainless Steel
Head Type Hex Cap
Thread Type Coarse, machine thread
Threading Partially threaded (USS)
Washer Face Yes, under head
Number in Package 100 pack
Packaging Type Boxed
Category Hex Bolts / Hex Cap Screws
Package Dimensions 3.5 in L x 3.4 in W x 2 in H
Package Weight 1.7 lb

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are USS partially threaded along the shank.


Q: What tools do I use to install them?
A: Tighten with a wrench or a drill fitted with the appropriate hex socket.


Q: Can these be used outdoors?
A: Yes. The 18-8 stainless steel provides enhanced corrosion resistance for outdoor and damp environments.


Q: What thread size and type are these screws?
A: They are 1/4-20 coarse machine-thread hex cap screws.


Q: Do they come with nuts or washers?
A: No. This pack includes only the hex head cap screws; nuts and washers are sold separately.


Sleek Stainless Fastening for Modern Builds

These stainless hex cap screws bring a refined, utility-chic touch to hardware moments—quietly polished, impeccably functional. The washer-face head offers a balanced, tailored seal that reads clean and intentional in exposed applications. Pair them with brushed steel brackets or ebony-stained timbers to punctuate the composition with subtle shine. Essential hardware that elevates everyday craftsmanship to a luxurious standard.


Secure your project with corrosion-resistant strength—add this 100-pack of Hillman stainless hex cap screws to your cart today.

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