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Socket Cap Screws, Stainless Steel 18-8, 1/4"-20 x 1-1/8", Full Thread

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

1/4-20, Stainless steel 18-8, Socket head screws are bolts or machine screws with a Hex or Allen drive style.

  • Commonly referred to as allen bolts, socket head cap screws, or socket head screws
  • Driven manually, or with a Hex Allen Bit or Key
  • Cylindrical head
  • Stainless steel 18-8 offers the Fastener Industry standard for corrosion and rust resistance
  • Recommended for use in exterior applications, or those exposed to fresh water moisture
The term socket head cap screw typically refers to a type of threaded fastener whose head diameter is nominally 1.5 times or more that of the screw shank (major) diameter.

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

Product number: 28102
Print this page
Click on a size/sku in the table to view product-specific details and specifications.
FT = Full Thread (threaded the entire length)  ·  PT = Partial Thread (unthreaded shoulder below the head)

Specifications

  • Chamfer on Radius: Max 0.008
  • Color: Silver
  • Condition: New
  • Corrosion Resistant: Yes
  • Diameter: 1/4"
  • Drive Style: Internal Hex (Allen)
  • Head Type: Socket Head
  • Thread Direction: Right Hand
  • Thread Type: Coarse
  • Fit: 3A
  • FT = Full Thread: Yes
  • Grade: 18-8
  • Head Height: Max 0.250 - Min 0.244
  • Head Height Max: 0.25
  • Head Diameter: Max 0.375 - Min 0.365
  • Head Side Height: Min 0.225
  • Head Style: Socket Cap
  • Hex Drive: 3/16"
  • Length: 1-1/8"
  • Material: Stainless Steel
  • Overall Head Height: Max 0.250 - Min 0.244
  • Part Number: 618930295207
  • Product Type: Socket Cap Screws
  • Size System: US
  • Size Type: Regular
  • System of Measurement: Inch
  • Thread Direction: Right Hand
  • Thread Pitch: 20 Per Inch
  • Thread Size: 1/4"-20
  • Thread Standard: UNC
  • Thread Type: Coarse
  • Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
  • Weight: 1 lb

Frequently Used With

Flat Washers, Stainless Steel 304, 1/4" (.281 ID x 5/8 OD x .050 Thick) Flat Washers, Stainless Steel 304, 1/4" (.281 ID x 5/8 OD x .050 Thick)
SKU: 1000-105142
Volume Pricing*
1
$0.09
($0.09/ea)
100
$3.00
($0.03/ea)
1000
$20.00
($0.02/ea)
$0.00
Lock Washers, Split Ring, Stainless Steel 304, 1/4" (.252 ID x .487 OD x .062 Thick) Lock Washers, Split Ring, Stainless Steel 304, 1/4" (.252 ID x .487 OD x .062 Thick)
SKU: 108102
Volume Pricing*
1
$0.08
($0.08/ea)
100
$4.00
($0.04/ea)
1000
$30.00
($0.03/ea)
$0.00
Hex Finish Nuts, Stainless Steel 304, 1/4"-20 (7/16" Flats x 7/32" Thick) Hex Finish Nuts, Stainless Steel 304, 1/4"-20 (7/16" Flats x 7/32" Thick)
SKU: 123002
Volume Pricing*
1
$0.09
($0.09/ea)
100
$6.00
($0.06/ea)
1000
$50.00
($0.05/ea)
$0.00
Nylon Lock Nuts, Stainless Steel 304, 1/4-20 (.439 Flats x .328 Height) Nylon Lock Nuts, Stainless Steel 304, 1/4-20 (.439 Flats x .328 Height)
SKU: 128092
Volume Pricing*
1
$0.15
($0.15/ea)
100
$11.00
($0.11/ea)
1000
$90.00
($0.09/ea)
$0.00
Hex Socket Head Allen Power Bits, 3/16, Length 2" Hex Socket Head Allen Power Bits, 3/16, Length 2"
SKU: 1050-800-0041
Volume Pricing*
1
$3.15
($3.15/ea)
10
$29.80
($2.98/ea)
50
$129.50
($2.59/ea)
$0.00
Hex Allen Key, Long Arm, Black Alloy Steel, 3/16" Hex Allen Key, Long Arm, Black Alloy Steel, 3/16"
SKU: 1055-10022-0002
Volume Pricing*
1
$0.74
($0.74/ea)
100
$69.00
($0.69/ea)
1000
$650.00
($0.65/ea)
$0.00
Select Size/SKU & Quantity
30 Available Sizes
SIZE/SKU Review Volume Pricing* Enter Any Qty
1/4"-20 x 1/4" FT
28002
1
$0.19 ($0.19/ea)
100
$12.00 ($0.12/ea)
1000
$100.00 ($0.10/ea)
$0.00
1/4"-20 x 5/16" FT
28012
1
$0.36 ($0.36/ea)
100
$19.00 ($0.19/ea)
1000
$160.00 ($0.16/ea)
$0.00
1/4"-20 x 3/8" FT
28022
1
$0.20 ($0.20/ea)
100
$13.00 ($0.13/ea)
1000
$100.00 ($0.10/ea)
$0.00
1/4"-20 x 7/16" FT
28032
1
$0.36 ($0.36/ea)
100
$17.00 ($0.17/ea)
1000
$150.00 ($0.15/ea)
$0.00
1/4"-20 x 1/2" FT
28042
1
$0.21 ($0.21/ea)
100
$13.00 ($0.13/ea)
1000
$110.00 ($0.11/ea)
$0.00
1/4"-20 x 9/16" FT
28052
1
$0.36 ($0.36/ea)
100
$22.00 ($0.22/ea)
1000
$200.00 ($0.20/ea)
$0.00
1/4"-20 x 5/8" FT
28062
1
$0.22 ($0.22/ea)
100
$14.00 ($0.14/ea)
1000
$120.00 ($0.12/ea)
$0.00
1/4"-20 x 3/4" FT
28072
1
$0.24 ($0.24/ea)
100
$15.00 ($0.15/ea)
1000
$130.00 ($0.13/ea)
$0.00
1/4"-20 x 7/8" FT
28082
1
$0.26 ($0.26/ea)
100
$17.00 ($0.17/ea)
1000
$150.00 ($0.15/ea)
$0.00
1/4"-20 x 1" FT
28092
1
$0.29 ($0.29/ea)
100
$18.00 ($0.18/ea)
1000
$150.00 ($0.15/ea)
$0.00
1/4"-20 x 1-1/8" FT
28102
1
$0.38 ($0.38/ea)
100
$33.00 ($0.33/ea)
1000
$310.00 ($0.31/ea)
$0.00
1/4"-20 x 1-1/4" FT
28112
1
$0.33 ($0.33/ea)
100
$20.00 ($0.20/ea)
1000
$170.00 ($0.17/ea)
$0.00
1/4"-20 x 1-3/8" FT
28122
1
$0.44 ($0.44/ea)
100
$39.00 ($0.39/ea)
1000
$360.00 ($0.36/ea)
$0.00
1/4"-20 x 1-1/2" PT
28132
1
$0.40 ($0.40/ea)
100
$25.00 ($0.25/ea)
1000
$210.00 ($0.21/ea)
$0.00
1/4"-20 x 1-3/4" PT
28142
1
$0.49 ($0.49/ea)
100
$30.00 ($0.30/ea)
1000
$250.00 ($0.25/ea)
$0.00
1/4"-20 x 2" PT
28152
1
$0.53 ($0.53/ea)
100
$32.00 ($0.32/ea)
1000
$270.00 ($0.27/ea)
$0.00
1/4"-20 x 2-1/4" PT
28162
1
$0.56 ($0.56/ea)
100
$48.00 ($0.48/ea)
1000
$450.00 ($0.45/ea)
$0.00
1/4"-20 x 2-1/2" PT
28172
1
$0.65 ($0.65/ea)
100
$41.00 ($0.41/ea)
1000
$340.00 ($0.34/ea)
$0.00
1/4"-20 x 2-3/4" PT
28182
1
$0.59 ($0.59/ea)
100
$56.00 ($0.56/ea)
1000
$520.00 ($0.52/ea)
$0.00
1/4"-20 x 3" PT
28192
1
$0.74 ($0.74/ea)
100
$46.00 ($0.46/ea)
1000
$390.00 ($0.39/ea)
$0.00
1/4"-20 x 3-1/4" PT
28202
1
$0.89 ($0.89/ea)
100
$85.00 ($0.85/ea)
1000
$820.00 ($0.82/ea)
$0.00
1/4"-20 x 3-1/2" PT
28212
1
$1.11 ($1.11/ea)
100
$85.00 ($0.85/ea)
1000
$730.00 ($0.73/ea)
$0.00
1/4"-20 x 4" PT
28222
1
$1.45 ($1.45/ea)
100
$103.00 ($1.03/ea)
1000
$880.00 ($0.88/ea)
$0.00
1/4"-20 x 4-1/2" PT
28232
1
$2.23 ($2.23/ea)
100
$157.00 ($1.57/ea)
1000
$1,390.00 ($1.39/ea)
$0.00
1/4"-20 x 5" PT
28242
1
$3.02 ($3.02/ea)
100
$213.00 ($2.13/ea)
1000
$1,880.00 ($1.88/ea)
$0.00
1/4"-20 x 5-1/2" PT
28252
1
$3.69 ($3.69/ea)
100
$261.00 ($2.61/ea)
1000
$2,300.00 ($2.30/ea)
$0.00
1/4"-20 x 6" PT
28262
1
$4.05 ($4.05/ea)
100
$320.00 ($3.20/ea)
1000
$2,850.00 ($2.85/ea)
$0.00
1/4"-20 x 6-1/2" PT
28272
1
$13.44 ($13.44/ea)
100
$1,095.00 ($10.95/ea)
1000
$9,800.00 ($9.80/ea)
$0.00
1/4"-20 x 7" PT
28282
1
$12.50 ($12.50/ea)
100
$1,014.00 ($10.14/ea)
1000
$9,090.00 ($9.09/ea)
$0.00
1/4"-20 x 8" PT
28292
1
$23.65 ($23.65/ea)
100
$1,921.00 ($19.21/ea)
1000
$17,190.00 ($17.19/ea)
$0.00

*Volume pricing available on select products. Products without quantity breaks are priced per unit.

Page Total: $0.00

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