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Carriage Bolts, Stainless Steel 18-8, 3/8"-16

Carriage Bolts, Stainless Steel 18-8, 3/8"-16

Diameter - Thread Pitch: 3/8-16

  • Square section grips into the part being fixed (typically wood)
  • Carriage bolts are threaded all the way down to the square section beneath the head
  • Prevents the bolt from turning when the nut is tightened
  • 18-8 Stainless steel is corrosion and rust resistant
  • 18-8 Stainless steel is considered the fastener industry standard

3/8"-16 Carriage bolts have a domed or countersunk head, and the shank is topped by a short square section under the head.

All Carriage Bolts over 6" in length are Partially Threaded

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/SKU
Select Package Quantity Price
SubTotal
3/8"-16 x 3/4" FT
SKU #78022
3/8"-16 x 3/4" FT
SKU #78022
1 $0.36 (0.36/ea)
100 $26.00 (0.26/ea)
1000 $230.00 (0.23/ea)
Subtotal: $0.00 /
3/8"-16 x 1" FT
SKU #78032
3/8"-16 x 1" FT
SKU #78032
1 $0.64 (0.64/ea)
100 $46.00 (0.46/ea)
1000 $420.00 (0.42/ea)
Subtotal: $0.00 /
3/8"-16 x 1-1/4" FT
SKU #78042
3/8"-16 x 1-1/4" FT
SKU #78042
1 $0.70 (0.7/ea)
100 $50.00 (0.5/ea)
1000 $450.00 (0.45/ea)
Subtotal: $0.00 /
3/8"-16 x 1-1/2" FT
SKU #78052
3/8"-16 x 1-1/2" FT
SKU #78052
1 $0.77 (0.77/ea)
100 $55.00 (0.55/ea)
1000 $500.00 (0.5/ea)
Subtotal: $0.00 /
3/8"-16 x 1-3/4" FT
SKU #78062
3/8"-16 x 1-3/4" FT
SKU #78062
1 $0.86 (0.86/ea)
100 $62.00 (0.62/ea)
1000 $560.00 (0.56/ea)
Subtotal: $0.00 /
3/8"-16 x 2" FT
SKU #78072
3/8"-16 x 2" FT
SKU #78072
1 $0.89 (0.89/ea)
100 $64.00 (0.64/ea)
1000 $570.00 (0.57/ea)
Subtotal: $0.00 /
3/8"-16 x 2-1/4" FT
SKU #78082
3/8"-16 x 2-1/4" FT
SKU #78082
1 $0.90 (0.9/ea)
100 $67.00 (0.67/ea)
1000 $600.00 (0.6/ea)
Subtotal: $0.00 /
3/8"-16 x 2-1/2" FT
SKU #78092
3/8"-16 x 2-1/2" FT
SKU #78092
1 $1.04 (1.04/ea)
100 $75.00 (0.75/ea)
1000 $670.00 (0.67/ea)
Subtotal: $0.00 /
3/8"-16 x 2-3/4" FT
SKU #78102
3/8"-16 x 2-3/4" FT
SKU #78102
1 $1.10 (1.1/ea)
100 $80.00 (0.8/ea)
1000 $700.00 (0.7/ea)
Subtotal: $0.00 /
3/8"-16 x 3" FT
SKU #78112
3/8"-16 x 3" FT
SKU #78112
1 $1.15 (1.15/ea)
100 $83.00 (0.83/ea)
1000 $750.00 (0.75/ea)
Subtotal: $0.00 /
3/8"-16 x 3-1/4" FT
SKU #78122
3/8"-16 x 3-1/4" FT
SKU #78122
1 $1.20 (1.2/ea)
100 $90.00 (0.9/ea)
1000 $800.00 (0.8/ea)
Subtotal: $0.00 /
3/8"-16 x 3-1/2" FT
SKU #78132
3/8"-16 x 3-1/2" FT
SKU #78132
1 $1.26 (1.26/ea)
100 $90.00 (0.9/ea)
1000 $820.00 (0.82/ea)
Subtotal: $0.00 /
3/8"-16 x 3-3/4" FT
SKU #78142
3/8"-16 x 3-3/4" FT
SKU #78142
1 $1.52 (1.52/ea)
100 $141.00 (1.41/ea)
1000 $1,390.00 (1.39/ea)
Subtotal: $0.00 /
3/8"-16 x 4" FT
SKU #78152
3/8"-16 x 4" FT
SKU #78152
1 $1.45 (1.45/ea)
100 $103.00 (1.03/ea)
1000 $940.00 (0.94/ea)
Subtotal: $0.00 /
3/8"-16 x 4-1/2" FT
SKU #78162
3/8"-16 x 4-1/2" FT
SKU #78162
1 $1.54 (1.54/ea)
100 $110.00 (1.1/ea)
1000 $990.00 (0.99/ea)
Subtotal: $0.00 /
3/8"-16 x 5" FT
SKU #78172
3/8"-16 x 5" FT
SKU #78172
1 $1.85 (1.85/ea)
100 $132.00 (1.32/ea)
1000 $1,190.00 (1.19/ea)
Subtotal: $0.00 /
3/8"-16 x 5-1/2" FT
SKU #78182
3/8"-16 x 5-1/2" FT
SKU #78182
1 $2.09 (2.09/ea)
100 $150.00 (1.5/ea)
1000 $1,340.00 (1.34/ea)
Subtotal: $0.00 /
3/8"-16 x 6" FT
SKU #78192
3/8"-16 x 6" FT
SKU #78192
1 $2.25 (2.25/ea)
100 $160.00 (1.6/ea)
1000 $1,450.00 (1.45/ea)
Subtotal: $0.00 /
3/8"-16 x 6-1/2" PT
SKU #78202
3/8"-16 x 6-1/2" PT
SKU #78202
1 $5.86 (5.86/ea)
100 $418.00 (4.18/ea)
1000 $3,760.00 (3.76/ea)
Subtotal: $0.00 /
3/8"-16 x 7" PT
SKU #78212
3/8"-16 x 7" PT
SKU #78212
1 $6.02 (6.02/ea)
100 $419.00 (4.19/ea)
1000 $3,880.00 (3.88/ea)
Subtotal: $0.00 /
3/8"-16 x 7-1/2" PT
SKU #78222
3/8"-16 x 7-1/2" PT
SKU #78222
1 $6.31 (6.31/ea)
100 $451.00 (4.51/ea)
1000 $4,060.00 (4.06/ea)
Subtotal: $0.00 /
3/8"-16 x 8" PT
SKU #78232
3/8"-16 x 8" PT
SKU #78232
1 $6.37 (6.37/ea)
100 $455.00 (4.55/ea)
1000 $4,100.00 (4.1/ea)
Subtotal: $0.00 /
3/8"-16 x 8-1/2" PT
SKU #78242
3/8"-16 x 8-1/2" PT
SKU #78242
1 $6.61 (6.61/ea)
100 $472.00 (4.72/ea)
1000 $4,250.00 (4.25/ea)
Subtotal: $0.00 /
3/8"-16 x 9" PT
SKU #78252
3/8"-16 x 9" PT
SKU #78252
1 $6.87 (6.87/ea)
100 $491.00 (4.91/ea)
1000 $4,420.00 (4.42/ea)
Subtotal: $0.00 /
3/8"-16 x 9-1/2" PT
SKU #78262
3/8"-16 x 9-1/2" PT
SKU #78262
1 $7.33 (7.33/ea)
100 $524.00 (5.24/ea)
1000 $4,720.00 (4.72/ea)
Subtotal: $0.00 /
3/8"-16 x 10" PT
SKU #78272
3/8"-16 x 10" PT
SKU #78272
1 $7.92 (7.92/ea)
100 $565.00 (5.65/ea)
1000 $5,090.00 (5.09/ea)
Subtotal: $0.00 /
3/8"-16 x 12" PT
SKU #78282
3/8"-16 x 12" PT
SKU #78282
1 $9.75 (9.75/ea)
100 $659.00 (6.59/ea)
1000 $5,930.00 (5.93/ea)
Subtotal: $0.00 /
3/8"-16 x 14" PT
SKU #78292
3/8"-16 x 14" PT
SKU #78292
1 $11.65 (11.65/ea)
100 $833.00 (8.33/ea)
1000 $7,500.00 (7.5/ea)
Subtotal: $0.00 /

Frequently Used With

Hex Finish Nuts 304 SS - 3/8"-16 (9/16" Flats x 21/64" Thick)
Hex Finish Nuts 304 SS - 3/8"-16 (9/16" Flats x 21/64" Thick) 123042
Hex Finish Nuts 304 SS - 3/8
1 $0.18 (0.18/ea)
100 $13.00 (0.13/ea)
1000 $110.00 (0.11/ea)
Subtotal: $0.00
Flat Washers 304 SS - 3/8" (.406 ID x 7/8 OD x .050 Thick)
Flat Washers 304 SS - 3/8" (.406 ID x 7/8 OD x .050 Thick) 1000-105162
Flat Washers 304 SS - 3/8
1 $0.12 (0.12/ea)
100 $7.00 (0.07/ea)
1000 $60.00 (0.06/ea)
Subtotal: $0.00
MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz.
MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz. 1050-106
MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz.
Anti Seize MRO Solution 2400 - 8oz Prevent Fastener Galling & Locking Up with Anti-Seize Lubricants
Our Price: $18.11
Subtotal: $0.00
Lock Washer Split Ring 304 SS - 3/8" (.377 ID x .680 OD x .078 Thick)
Lock Washer Split Ring 304 SS - 3/8" (.377 ID x .680 OD x .078 Thick) 108122
Lock Washer Split Ring 304 SS - 3/8
1 $0.15 (0.15/ea)
100 $9.00 (0.09/ea)
1000 $80.00 (0.08/ea)
Subtotal: $0.00
Product Specifications
Product Specifications
Color
Silver
Corner Radius on Square
0.047
Corrosion Resistant
Yes
Filet Radius
0.031
Grade
18-8
Head Diameter
Max 0.844 - Min 0.782
Head Height Max
0.208
Head Style
Dome
Material
Stainless Steel
Overall Head Height
Max 0.208 - Min 0.188
Product Type
Carriage Bolt
Square Neck Depth
Max 0.219 - Min 0.188
Square Neck Width
Max 0.388 - Min 0.368
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Thread Pitch (Count)
16 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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