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Hex Serrated Flange Bolts 18-8 Stainless Steel 5/16-18"

5/16"-18 Stainless Steel Hex Serrated Flange Bolts

Diameter - Thread Pitch: 5/16"-18

  • 5/16"-18
  • Hex head bolt with serrated flange designed to be driven by a wrench or socket
  • Also referred to as flange tap bolts
  • Built in integral washer to distribute pressure over a greater surface area and prevent pull-through
  • Serrated flange acts as a lock washer to help keep a fastener from vibrating loose
  • 18-8 Stainless steel flange bolts are corrosion and rust resistant

A hex flange bolt is commonly considered a tap bolt with a serrated flange.

A Hex Bolt is measured as: Diameter x Thread Pitch x Length from Under Head
FT: Fully Threaded
PT: Partially Threaded

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

Size
Select Package Quantity
SubTotal
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1/2" (FT)
SKU #12050002
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1/2" (FT)
SKU #12050002
1
 $1.07 (1.07/ea)
25
 $26.00 (1.04/ea)
100
 $100.00 (1/ea)
1000
 $990.00 (0.99/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 5/8" (FT)
SKU #12050010-02
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 5/8" (FT)
SKU #12050010-02
1
 $0.70 (0.7/ea)
25
 $16.75 (0.67/ea)
100
 $66.00 (0.66/ea)
1000
 $640.00 (0.64/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 3/4" (FT)
SKU #12050012
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 3/4" (FT)
SKU #12050012
1
 $1.11 (1.11/ea)
25
 $27.00 (1.08/ea)
100
 $104.00 (1.04/ea)
1000
 $1,020.00 (1.02/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1" (FT)
SKU #12050022
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1" (FT)
SKU #12050022
1
 $1.37 (1.37/ea)
25
 $33.00 (1.32/ea)
100
 $125.00 (1.25/ea)
1000
 $1,240.00 (1.24/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1-1/4" (FT)
SKU #12050032
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1-1/4" (FT)
SKU #12050032
1
 $1.65 (1.65/ea)
25
 $40.25 (1.61/ea)
100
 $153.00 (1.53/ea)
1000
 $1,510.00 (1.51/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1-1/2" (FT)
SKU #12050042
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1-1/2" (FT)
SKU #12050042
1
 $1.84 (1.84/ea)
25
 $44.25 (1.77/ea)
100
 $173.00 (1.73/ea)
1000
 $1,690.00 (1.69/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1-3/4" (FT)
SKU #12050052
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 1-3/4" (FT)
SKU #12050052
1
 $2.49 (2.49/ea)
25
 $60.00 (2.4/ea)
100
 $228.00 (2.28/ea)
1000
 $2,260.00 (2.26/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 2" (FT)
SKU #12050062
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 2" (FT)
SKU #12050062
1
 $2.54 (2.54/ea)
25
 $60.50 (2.42/ea)
100
 $233.00 (2.33/ea)
1000
 $2,320.00 (2.32/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 2-1/2" (FT)
SKU #12050072
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 2-1/2" (FT)
SKU #12050072
1
 $2.70 (2.7/ea)
25
 $54.00 (2.16/ea)
100
 $194.00 (1.94/ea)
1000
 $1,910.00 (1.91/ea)
Subtotal: $0.00 /
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 3" (FT)
SKU #12050082
Hex Serrated Flange Bolt 18-8 SS - 5/16-18 x 3" (FT)
SKU #12050082
1
 $2.41 (2.41/ea)
25
 $58.25 (2.33/ea)
100
 $224.00 (2.24/ea)
1000
 $2,230.00 (2.23/ea)
Subtotal: $0.00 /



FREQUENTLY USED WITH

Flat Washers 304 SS - 5/16" (.343 ID x 3/4 OD x .050 Thick)
Flat Washers 304 SS - 5/16" (.343 ID x 3/4 OD x .050 Thick) 1000-105152
Flat Washers 304 SS - 5/16
1
 NA
25
 $2.00 (0.08/ea)
100
 $6.00 (0.06/ea)
1000
 $40.00 (0.04/ea)
Subtotal: $0.00 /
Flange Nuts Serrated 304 SS - 5/16-18 (.50 Flats x .283 Thick)
Flange Nuts Serrated 304 SS - 5/16-18 (.50 Flats x .283 Thick) 127062
Flange Nuts Serrated 304 SS - 5/16-18 (.50 Flats x .283 Thick)
1
 NA
25
 $7.25 (0.29/ea)
100
 $19.00 (0.19/ea)
1000
 $180.00 (0.18/ea)
Subtotal: $0.00 /
Hex Finish Nuts 304 SS - 5/16"-18 (1/2" Flats x 17/64" Thick)
Hex Finish Nuts 304 SS - 5/16"-18 (1/2" Flats x 17/64" Thick) 123022
Hex Finish Nuts 304 SS - 5/16
1
 NA
25
 $2.50 (0.1/ea)
100
 $7.00 (0.07/ea)
1000
 $60.00 (0.06/ea)
Subtotal: $0.00 /
Product Specifications
Color
Silver
Corrosion Resistant
Yes
Drive Style
External Hex
Flange Diameter
Max 0.671 - Min 0.659
Grade
18-8
Head Style
Hex Flange
Material
Stainless Steel
Product Type
Hex Serrated Flange Bolts
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Thread Pitch (Count)
18 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Width Across Corners
Max 0.568 - Min 0.560
Wrench Size
1/2"

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