1/4-20 Button Socket Head Screws Black Oxide 18-8 Stainless Steel

1/4"-20 Black Oxide Stainless Steel Button Head Socket Cap Screws

Screw Diameter - Thread Pitch: 1/4"-20


1/4"-20 Button Head Socket Cap Screws are bolts or machine screws with a Hex or Allen drive style.

  • Commonly referred to as allen bolts, button heads, or socket head screws
  • Clean and unstamped domed head with a flat bottom that protrudes above the installation surface
  • Cylindrical head and hexagonal drive style
  • Head diameter is nominally 1.5 times or more that of the screw shank (major) diameter
  • Chemically treated to add a mild extra layer of corrosion and abrasion resistance
  • Sleek black finished look


Black Oxide Stainless Steel Fasteners are commonly used in industries where the durability of Stainless Steel is required, but a smooth black look is desired. These industries include firearms, automotive (car and motorcycle), camping gear, archery, knife builds and product manufacturing.

Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Size/SKU
Select Package Quantity Price
SubTotal
1/4"-20 x 3/8" FT
1/4"-20 x 3/8" FT
1 $0.29 (0.29/ea)
100 $20.00 (0.2/ea)
1000 $190.00 (0.19/ea)
Subtotal: $0.00 /
1/4"-20 x 1/2" FT
1/4"-20 x 1/2" FT
1 $0.30 (0.3/ea)
100 $22.00 (0.22/ea)
1000 $210.00 (0.21/ea)
Subtotal: $0.00 /
1/4"-20 x 5/8" FT
1/4"-20 x 5/8" FT
1 $0.33 (0.33/ea)
100 $25.00 (0.25/ea)
1000 $230.00 (0.23/ea)
Subtotal: $0.00 /
1/4"-20 x 3/4" FT
1/4"-20 x 3/4" FT
1 $0.45 (0.45/ea)
100 $30.00 (0.3/ea)
1000 $270.00 (0.27/ea)
Subtotal: $0.00 /
1/4"-20 x 1" FT
1/4"-20 x 1" FT
1 $0.46 (0.46/ea)
100 $34.00 (0.34/ea)
1000 $320.00 (0.32/ea)
Subtotal: $0.00 /
1/4"-20 x 1-1/2" FT
1/4"-20 x 1-1/2" FT
1 $0.69 (0.69/ea)
100 $56.00 (0.56/ea)
1000 $510.00 (0.51/ea)
Subtotal: $0.00 /

Frequently Used With

1 $3.80 (3.8/ea)
10 $29.80 (2.98/ea)
50 $129.50 (2.59/ea)
Subtotal: $0.00
1 $0.39 (0.39/ea)
100 $34.00 (0.34/ea)
1000 $270.00 (0.27/ea)
Subtotal: $0.00
1 $0.51 (0.51/ea)
100 $47.00 (0.47/ea)
1000 $450.00 (0.45/ea)
Subtotal: $0.00
1 $0.30 (0.3/ea)
100 $18.00 (0.18/ea)
1000 $170.00 (0.17/ea)
Subtotal: $0.00
1 $0.15 (0.15/ea)
100 $9.00 (0.09/ea)
1000 $80.00 (0.08/ea)
Subtotal: $0.00

Product Specifications
ANSI
ANSI B1.1
Class
2A
Color
Black
Corrosion Resistant
Yes
Drive Style
Internal Hex (Allen)
Finish
Black Oxide
Grade
18-8
Head Diameter
Max 0.437 - Min 0.419
Head Height
Max 0.132 - Min 0.122
Head Style
Button
Hex Drive
5/32"
Material
Stainless Steel
Product Type
Button Head Socket Cap Screws
System of Measurement (Unit)
Inch
Thread Diameter
(1/4") Max 0.2489 - Min 0.2408
Thread Direction
Right Hand
Thread Pitch (Count)
20 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances