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Hex Cap Screws, Stainless Steel 316, 1/4"-28 x 4-1/2, Partial Thread

Diameter - Thread Pitch: 1/4" - 28
  • 1/4"-28
  • Hexagon head designed to be driven by a wrench or socket
  • Also called hex cap bolts, hex bolts, tap bolts or hex cap screws
  • 316 Stainless Steel Hex Cap Screws are suitable for saltwater, marine and hash environment installations
  • Commonly used for:
    • Boats
    • Docks
    • Piers
    • Other harsh environments

A hex cap screw in smaller sizes may not have a shoulder. When a hex cap screw is fully threaded it can also be referred to as a tap bolt.

Hex Bolts are measured as: Diameter x Thread Pitch x Length from Under Head
FT: Fully Threaded
PT: Partially Threaded

**1/4"-20 Hex Cap Screws listed as PT, usually have a threaded portion of about 3/4".
However, this can vary slightly from manufacturer to manufacturer.

Product number: 630162
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

  • Across Flats (Width): 7/16" (Max 0.437 - Min 0.428)
  • asme: B18.2.1
  • Color (Duplicate): Silver
  • Color: Silver
  • Condition: New
  • Corrosion Resistant: Yes
  • Diameter: 1/4"
  • Drive Style: External Hex
  • Head Type: Hex Head
  • Thread Direction: Right Hand
  • Thread Type: Fine
  • Fit: 2A
  • FT = Full Thread: No
  • Grade: 316
  • Head Height Basic: 5/32"
  • Head Height Max: 0.163
  • Head Style: Hex
  • Length: 4-1/2
  • Marine Grade: Yes
  • Material (Duplicate): 316 Stainless Steel
  • Material: Stainless Steel
  • Overall Head Height: Basic 5/32", Max 0.163 - Min 0.150
  • Part Number: 046737893751
  • Pattern: Hex Cap Screws
  • Product Type: Hex Cap Screws
  • Size Type: Regular
  • Standards Met: ASME B18.2.1
  • System of Measurement: Inch
  • Thread Direction: Right Hand
  • Thread Pitch: 28 Per Inch
  • Thread Size: 1/4"-28
  • Thread Standard: UNF
  • Thread Type: Fine
  • Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
  • Weight: 1 lb
  • Width Across Corners: Max 0.505 - Min 0.488
  • Wrench Size: 7/16"

Frequently Used With

Hex Finish Nuts, Stainless Steel 316, 1/4"-28 (7/16" Flats x 7/32" Thick) Hex Finish Nuts, Stainless Steel 316, 1/4"-28 (7/16" Flats x 7/32" Thick)
Volume Pricing*
1
$0.15
($0.15/ea)
100
$10.00
($0.10/ea)
1000
$90.00
($0.09/ea)
$0.00
Fender Washers, Stainless Steel 316, (1/4" x 1") Fender Washers, Stainless Steel 316, (1/4" x 1")
Volume Pricing*
1
$0.45
($0.45/ea)
100
$39.00
($0.39/ea)
1000
$290.00
($0.29/ea)
$0.00
Flat Washers, Stainless Steel 316, 1/4" (0.281 ID x 5/8 OD x .050 THK) Flat Washers, Stainless Steel 316, 1/4" (0.281 ID x 5/8 OD x .050 THK)
Volume Pricing*
1
$0.08
($0.08/ea)
100
$6.00
($0.06/ea)
1000
$50.00
($0.05/ea)
$0.00
Lock Washers, Split Ring, Stainless Steel 316, 1/4" (0.252 ID x 0.487 OD x .062 THK) Lock Washers, Split Ring, Stainless Steel 316, 1/4" (0.252 ID x 0.487 OD x .062 THK)
Volume Pricing*
1
$0.09
($0.09/ea)
100
$5.00
($0.05/ea)
1000
$40.00
($0.04/ea)
$0.00
Nylon Lock Nuts, Stainless Steel 316, 1/4"-28 (439" Flats x .328" Thick) Nylon Lock Nuts, Stainless Steel 316, 1/4"-28 (439" Flats x .328" Thick)
Volume Pricing*
1
$0.28
($0.28/ea)
100
$24.00
($0.24/ea)
1000
$200.00
($0.20/ea)
$0.00
MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz. MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz.
Volume Pricing*
$20.03 ea.
$0.00
Select Size/SKU & Quantity
19 Available Sizes
SIZE/SKU Review Volume Pricing* Enter Any Qty
1/4"-28 x 1/2" FT
630002
1
$0.38 ($0.38/ea)
100
$24.00 ($0.24/ea)
1000
$210.00 ($0.21/ea)
$0.00
1/4"-28 x 5/8" FT
630012
1
$0.43 ($0.43/ea)
100
$26.00 ($0.26/ea)
1000
$230.00 ($0.23/ea)
$0.00
1/4"-28 x 3/4" FT
630022
1
$0.46 ($0.46/ea)
100
$29.00 ($0.29/ea)
1000
$250.00 ($0.25/ea)
$0.00
1/4"-28 x 1" FT
630042
1
$0.55 ($0.55/ea)
100
$35.00 ($0.35/ea)
1000
$310.00 ($0.31/ea)
$0.00
1/4"-28 x 1-1/4" PT
630052
1
$0.60 ($0.60/ea)
100
$37.00 ($0.37/ea)
1000
$330.00 ($0.33/ea)
$0.00
1/4"-28 x 1-1/2" PT
630062
1
$0.66 ($0.66/ea)
100
$42.00 ($0.42/ea)
1000
$370.00 ($0.37/ea)
$0.00
1/4"-28 x 1-3/4" PT
630072
1
$0.76 ($0.76/ea)
100
$50.00 ($0.50/ea)
1000
$440.00 ($0.44/ea)
$0.00
1/4"-28 x 2" PT
630082
1
$0.84 ($0.84/ea)
100
$54.00 ($0.54/ea)
1000
$470.00 ($0.47/ea)
$0.00
1/4"-28 x 2-1/4" PT
630092
1
$0.59 ($0.59/ea)
100
$53.00 ($0.53/ea)
1000
$510.00 ($0.51/ea)
$0.00
1/4"-28 x 2-1/2" PT
630102
1
$1.15 ($1.15/ea)
100
$73.00 ($0.73/ea)
1000
$640.00 ($0.64/ea)
$0.00
1/4"-28 x 2-3/4" PT
630112
1
$1.25 ($1.25/ea)
100
$85.00 ($0.85/ea)
1000
$720.00 ($0.72/ea)
$0.00
1/4"-28 x 3" PT
630122
1
$1.38 ($1.38/ea)
100
$87.00 ($0.87/ea)
1000
$760.00 ($0.76/ea)
$0.00
1/4"-28 x 3-1/2" PT
630132
1
$1.66 ($1.66/ea)
100
$106.00 ($1.06/ea)
1000
$920.00 ($0.92/ea)
$0.00
1/4"-28 x 3-3/4" PT
630142
1
$1.75 ($1.75/ea)
100
$110.00 ($1.10/ea)
1000
$1,000.00 ($1.00/ea)
$0.00
1/4"-28 x 4" PT
630152
1
$1.83 ($1.83/ea)
100
$121.00 ($1.21/ea)
1000
$1,060.00 ($1.06/ea)
$0.00
1/4"-28 x 4-1/2" PT
630162
1
$2.23 ($2.23/ea)
100
$157.00 ($1.57/ea)
1000
$1,380.00 ($1.38/ea)
$0.00
1/4"-28 x 5" PT
630172
1
$2.44 ($2.44/ea)
100
$168.00 ($1.68/ea)
1000
$1,480.00 ($1.48/ea)
$0.00
1/4"-28 x 5-1/2" PT
630182
1
$1.31 ($1.31/ea)
100
$119.00 ($1.19/ea)
1000
$1,180.00 ($1.18/ea)
$0.00
1/4"-28 x 6" PT
630192
1
$2.65 ($2.65/ea)
100
$185.00 ($1.85/ea)
1000
$1,620.00 ($1.62/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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