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Price
$21.99
Slotted Flat Head Countersunk Machine Screws, 1/4" UNF, A2 Stainless Steel, 1/2" - 1 1/2" Long, Multi Pack Sizes Avaialble (10, 1/4 X 3/4") โ€” image 1
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Slotted Flat Head Countersunk Machine Screws, 1/4" UNF, A2 Stainless Steel, 1/2" - 1 1/2" Long, Multi Pack Sizes Avaialble (10, 1/4 X 3/4")

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$21.99

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About this item
  • THREAD SPECIFICATION: 1/4"-28 UNF thread size provides secure fastening for precision applications requiring fine thread pitch
  • HEAD DESIGN: Slotted flat head countersunk design sits flush with the surface when installed, creating a smooth, professional finish ideal for visible applications
  • PREMIUM MATERIAL: Manufactured from A2 stainless steel offering excellent corrosion resistance and durability for both indoor and outdoor use
  • LENGTH OPTIONS: Available in multiple lengths ranging from 3/4" to 1 1/2" to accommodate various material thicknesses and project requirements
  • FLEXIBLE QUANTITIES: Multi-pack sizes available to suit both small repairs and larger projects, providing cost-effective solutions for your fastening needs
Product description

These 1/4"-28 UNF slotted flat head countersunk machine screws are precision-engineered fasteners designed for applications requiring a flush, smooth finish. Manufactured from A2 stainless steel, these screws offer excellent corrosion resistance and durability, making them suitable for both indoor and outdoor use. The countersunk flat head design allows the screw to sit flush with or below the surface when properly installed, creating a neat, professional appearance. Available in lengths ranging from 3/4" to 1 1/2", these versatile screws accommodate various material thicknesses and project requirements. The traditional slotted drive provides reliable engagement with standard flat-head screwdrivers. A2 stainless steel construction ensures long-lasting performance in demanding environments whilst maintaining structural integrity. Multi-pack sizes are available to suit both small-scale repairs and larger projects, offering flexibility and value. These machine screws are ideal for metalworking, machinery assembly, electronics enclosures, and general engineering applications where a flush finish is essential.

Product details
Brand
Generic
Manufacturer
Spalding Fasteners ltd
Material
Stainless Steel
Colour
Silver
Size
1/4 X 3/4"
Model number
B18.6.3
Part number
MSCSLA2UNF1/4

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

Trustpilot
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Excellent
4.5 average rating
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S
Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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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
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1โ€“2 of 10 reviews

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Slotted Flat Head Countersunk Machine Screws, 1/4" UNF, A2 Stainless Steel, 1/2" - 1 1/2" Long, Multi Pack Sizes Avaialble (10, 1/4 X 3/4") | Bigamart