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Home/DIY & Tools/Hardware/Nails, Screws & Fasteners/Screws/Socket Cap Screws
Kozelo 25Pcs[5/16-18x1/2"] Flat Head Socket Cap Screw Countersunk Bolt — image 1
Socket Cap ScrewsKozelo✓ In stock

Kozelo 25Pcs[5/16-18x1/2"] Flat Head Socket Cap Screw Countersunk Bolt

★★★★★
$18.99

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31 available
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About this item
  • - PACKAGE CONTENTS - 25pcs Flat Head Socket Cap Screws. Specifications: 5/16"-18 x 1/2"inch; Thread Diameter: 5/16"; Screw Length: 1/2"inch; Thread Pitch: 18PTI; Head Diameter: 0.66inch(17mm); Hexagon Socket Width (Diagonal Width): 3/16"inch.
  • - MATERIAL -The screws are manufactured from 18-8 series (304) stainless steel. The chromium-nickel alloy composition provides excellent corrosion resistance, withstanding humid conditions, mildly acidic or alkaline environments, and daily oxidation. It also offers superior mechanical strength and toughness, extending the service life.
  • - APPLICATION - This flat-head hex socket screw is widely applicable for furniture assembly, vehicle maintenance, machinery debugging, and other scenarios requiring a flush mounting surface. It delivers secure fastening for connections involving wood, metal, or plastic materials, making it suitable for diverse practical applications such as home repairs, workshop maintenance, and model building.
  • - PRECISION CRAFTSMANSHIP - The screw head features an internal hexagon combined with a countersunk design. The internal hex socket structure, when paired with a standard hex wrench, efficiently transmits torque, reduces slippage, and enhances installation precision and efficiency.
  • - NOTICE - For connections subjected to prolonged vibration, a regular inspection schedule should be established to ensure no signs of loosening are present.
Product details
Brand
Kozelo
Manufacturer
Kozelo
Material
Stainless Steel
Colour
Silver
Size
5/16"-18 x 1/2"
Part number
klf250922zz000399

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

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