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

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

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

1/4"-20 Black Oxide Knurled Head Socket cap screws are machine screws with an Allen drive style.

  • Commonly referred to as allen bolts, socket head cap screws, or socket head screws
  • Externally grooved cap head
  • Can be driven manually, or with a Hex Allen Bit or Key
  • Cylindrical head and hexagonal drive style
  • Sleek black finished look
  • Type of threaded fastener whose head diameter is nominally 1.5 times or more that of the screw shank (major) diameter
Black Oxide Stainless Steel Screws are used in applications looking for a sleek black look, as well as a mild layer of additional protection. Black Oxide Stainless Steel Socket Cap Screws are more corrosion and abrasion resistant than standard 18-8 stainless steel. Black Oxide Stainless Steel is often used in the automotive industry and on tool, knife and firearm builds.

Sizes Listed As:
Diameter - Thread Pitch x Length from Underside of Head
FT = Full Thread
PT = Partial Thread

Select Products Below See Product Specifications
NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 3/8" (FT)
SKU #12210002
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 3/8" (FT)
SKU #12210002
1
 NA
25
 $11.25 (0.45/ea)
100
 $33.00 (0.33/ea)
1000
 $310.00 (0.31/ea)
Subtotal: $0.00 /
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1/2" (FT)
SKU #12210014
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1/2" (FT)
SKU #12210014
1
 NA
25
 $12.25 (0.49/ea)
100
 $37.00 (0.37/ea)
1000
 $340.00 (0.34/ea)
Subtotal: $0.00 /
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 5/8" (FT)
SKU #12210026
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 5/8" (FT)
SKU #12210026
1
 NA
25
 $12.50 (0.5/ea)
100
 $41.00 (0.41/ea)
1000
 $380.00 (0.38/ea)
Subtotal: $0.00 /
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 3/4" (FT)
SKU #12210038
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 3/4" (FT)
SKU #12210038
1
 NA
25
 $14.25 (0.57/ea)
100
 $43.00 (0.43/ea)
1000
 $390.00 (0.39/ea)
Subtotal: $0.00 /
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1" (FT)
SKU #12210050
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1" (FT)
SKU #12210050
1
 $0.67 (0.67/ea)
25
 $16.50 (0.66/ea)
100
 $51.00 (0.51/ea)
1000
 $470.00 (0.47/ea)
Subtotal: $0.00 /
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1-1/4" (PT)
SKU #12210062
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1-1/4" (PT)
SKU #12210062
1
 $0.73 (0.73/ea)
25
 $17.50 (0.7/ea)
100
 $58.00 (0.58/ea)
1000
 $530.00 (0.53/ea)
Subtotal: $0.00 /
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1-1/2" (PT)
SKU #12210074
Socket Cap Screws Black Oxide 18-8 SS - 1/4-20 x 1-1/2" (PT)
SKU #12210074
1
 $0.93 (0.93/ea)
25
 $22.25 (0.89/ea)
100
 $73.00 (0.73/ea)
1000
 $670.00 (0.67/ea)
Subtotal: $0.00 /

Frequently Used With

Hex Socket Head Power Bits - 3/16 - Length 2"
Hex Socket Head Power Bits - 3/16 - Length 2" 1050-800-0041
Hex Socket Head Power Bits - 3/16 - Length 2
1
 $3.15 (3.15/ea)
10
 $29.80 (2.98/ea)
25
 $72.75 (2.91/ea)
50
 $129.50 (2.59/ea)
Subtotal: $0.00 /
Hex Allen Key Short Arm 3/16 Black Alloy
Hex Allen Key Short Arm 3/16 Black Alloy 1055-20022-0002
Hex Allen Key Short Arm 3/16 Black Alloy
1
 $0.77 (0.77/ea)
25
 $18.00 (0.72/ea)
100
 $66.00 (0.66/ea)
1000
 $600.00 (0.6/ea)
Subtotal: $0.00 /
Hex Allen Key Long Arm 3/16" Black Alloy
Hex Allen Key Long Arm 3/16" Black Alloy 1055-10022-0002
Hex Allen Key Long Arm 3/16
1
 $0.66 (0.66/ea)
25
 $15.50 (0.62/ea)
100
 $57.00 (0.57/ea)
1000
 $520.00 (0.52/ea)
Subtotal: $0.00 /
Hex Finish Nuts 304 SS - 1/4"-20 (7/16" Flats x 7/32" Thick)
Hex Finish Nuts 304 SS - 1/4"-20 (7/16" Flats x 7/32" Thick) 123002
Hex Finish Nuts 304 SS - 1/4
1
 NA
25
 $2.25 (0.09/ea)
100
 $5.00 (0.05/ea)
1000
 $40.00 (0.04/ea)
Subtotal: $0.00 /
Flat Washer Black Oxide 18-8 SS - 1/4" (0.281 ID x 0.5/8 OD x .050 Thick)
Flat Washer Black Oxide 18-8 SS - 1/4" (0.281 ID x 0.5/8 OD x .050 Thick) 12290062
Flat Washer Black Oxide 18-8 SS - 1/4
1
 NA
25
 $6.25 (0.25/ea)
100
 $19.00 (0.19/ea)
1000
 $160.00 (0.16/ea)
Subtotal: $0.00 /
Product Specifications
Additional Sizing Info
Lengths over 1" will have a Shoulder / Partial Thread
Chamfer on Radius
Max 0.008
Color
Black
Corrosion Resistant
Yes
Drive Style
Internal Hex (Allen)
Finish
Black Oxide
Grade
18-8
Head Diameter
Max 0.375 - Min 0.365
Head Style
Socket Cap
Hex Drive
3/16"
Material
Stainless Steel
Overall Head Height
Max 0.250 - Min 0.244
Product Type
Socket Cap Screw
System of Measurement (Unit)
Inch
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

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Volume Pricing: Buy in volume, get a discount. The larger the pack, the lower the cost per piece. Visit the New Site Features Page for additional details.