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Glvaner (8 Sets) 5/16-18 x 2-1/2" Stainless Steel Carriage Bolts Screws Round Head Square Neck and Hex Nuts & Flat Washers 304 Stainless Steel 18-8 Full Thread Coverage

4.7 4.7 out of 5 stars 305 ratings

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Purchase options and add-ons

Material Stainless Steel
Thread Size 5/16"-18
Exterior Finish Stainless Steel
Manufacturer Grade Grade 304
Head Style Round

About this item

  • Package Includes: 8 Pcs Carriage Bolts (5/16-18 x 2-1/2") + 8 Pcs Hex Nuts (5/16"-18)+ 8 Pcs 5/16" ID Flat Washers
  • Thread Size: 5/16-18; Thread Pitch: 18 TPI; Thread Type: Coarse Thread
  • Bolt head diameter: 18mm; Round head height: 4.3mm; Screw length (including the neck): 2-1/2 inch or 63mm
  • Material: 304 stainless steel (A2) and no exterior finish, greater strength and corrosion resistance performance than regular stianless steel or zinc plated fasteners.
  • Carriage bolts have a dome shaped head and a square neck generally requiring a hex nut and flat washer. The square neck makes them self-locking when used within a square hole.

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Product details

  • Package Dimensions ‏ : ‎ 4.09 x 3.98 x 0.87 inches; 9.59 ounces
  • Item model number ‏ : ‎ GVNA36034-8
  • Date First Available ‏ : ‎ August 21, 2021
  • Manufacturer ‏ : ‎ Glvaner
  • ASIN ‏ : ‎ B09D91V3XL
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.7 4.7 out of 5 stars 305 ratings

Product Description

001
002

Carriage Bolt with Nuts and Washers

Carriage bolts have a dome shaped head and a square neck generally requiring a hex nut and flat washer. The square neck makes them self-locking when used within a square hole.

The smooth, domed head provides a semi-flush finish.

Drill a hole in the surface material that matches the diameter of the fastener, insert the bolt, and connect the nut on the other end.

002

Carriage Bolt

005

Hex Bolt

301301

Button Socket Cap

010

Flanged Hex Bolt

303

303

304

Stainless Steel 304

Made of 304 stainless steel 18-8 (A2) and no exterior finish, greater strength and corrosion resistance performance in both indoor and outdoor projects.

Wide Application

These bolts can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Perfect for pergolas, fences, docks, swingsets, wood-working and other projects.

Various Size Choice

1/4-20 x 1/2 inch to 5 inch

5/16-18 x 1/2 inch to 6 inch

3/8-16 x 1/2 inch to 6 inch

1/2-13 x 1 inch to 6 inch

Thread Size 1/4-20, 5/16-18, 3/8-16, 1/2-13
Scew Length Range 1/2 inch to 6 inch
Screw Length Measured Please Pay attention that the screw length is measured from under the head and includes the neck height.
Feature Square underside of the head is self locking to eliminate the need for a driving tool.
Meets ASME/ANSI B18.5
Thread Type Coarse Thread UNC, Fully Threaded
1000 1000 1000 0 0003 0003
1/4-20 Carriage Bolt with Nuts and Washers 5/16-18 Carriage Bolt with Nuts and Washers 3/8-16 Carriage Bolt with Nuts and Washers 1/2-13 Carriage Bolt with Nuts and Washers 1/4-20 Hex Bolt 3/8-16 Hex Bolt
Customer Reviews
4.7 out of 5 stars
305
4.7 out of 5 stars
305
4.7 out of 5 stars
305
4.7 out of 5 stars
305
4.6 out of 5 stars
66
4.6 out of 5 stars
66
Thread Size 1/4"-20 5/16"-18 3/8"-16 1/2"-13 1/4"-20 3/8"-16
Length Range 1/2"-5" 1/2"-6" 3/4"-6" 1"-6" 1/2"-5" 1/2"-6"
Material Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304
Drive Size None None None None 7/16 inch 9/16 inch
0004 0006 0006 0007 008 09
6mm Flanged Button with Nuts and Washers 8mm Flanged Hex Bolt with Nuts and Washers 6mm Button Socket with Nuts and 2xWashers 5/16-18 Hex Bolt with Nuts and Washers 6mm Furniture Screws with Locknuts 6mm Pan Phillps Machins Screws with Washer Head and Nuts and Washers
Customer Reviews
4.5 out of 5 stars
36
4.6 out of 5 stars
26
5.0 out of 5 stars
5
4.6 out of 5 stars
213
4.5 out of 5 stars
33
4.9 out of 5 stars
13
Thread Size M3-0.5/M4-0.7/M5-0.8/M6-1.0/M8-1.25 M5-0.8/M6-1.0/M8-1.25/M10-1.5 M5-0.8/M6-1.0/M8-1.25/M10-1.5 1/4-20, 5/16-18, 3/8-16, 1/2-13 M5-0.8/M6-1.0/M8-1.25/M10-1.5 M5-0.8/M6-1.0/M8-1.25/M10-1.5
Length Range 6mm-100mm 6mm-100mm 6mm-100mm 1/2 inch to 6 inch 6mm-100mm 6mm-100mm
Material Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304
Drive Size 4mm 13mm 4mm 1/2 inch 4mm #2

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
305 global ratings

Customers say

Customers like the quality, performance, value, appearance and material of the bolts. For example, they mention that it works great, is made of stainless steel and that it looks good. That said, they say it's a good buy.

AI-generated from the text of customer reviews

7 customers mention7 positive0 negative

Customers are satisfied with the quality of the bolts. They mention that the finish of the hardware is good, and the thread on the bolt/nut was smooth. Customers also appreciate that the bolt is made of stainless steel, which should last a long time.

"Very well made. Stainless steel. Great value." Read more

"...The finish of the hardware was good, and the thread on the bolt/nut was smooth without any roughness or burrs...." Read more

"Well made and did the job just fine" Read more

"Exactly what I needed. Good quality." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the performance of the bolts. They mention that it works great.

"Well made and did the job just fine" Read more

"I used these bolts for my latest trailer build. They worked perfect." Read more

"Works Great..." Read more

"Works great..." Read more

4 customers mention4 positive0 negative

Customers appreciate the value of the bolts. They say it's a good buy.

"Very well made. Stainless steel. Great value." Read more

"These fasteners were exactly what I ordered. Good value and quality" Read more

"good price for 10 sets...." Read more

"Good buy...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the appearance of the bolts. They mention that they are good looking and of high quality.

"...This is very nice looking hardware...." Read more

"...they are the right size and fit but they are also high quality and good looking...." Read more

"...Completely restored it with new blue paint and SS screws. Looks awesome and brand new." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the material of the bolts. They mention that they are made of stainless steel, which should last a long time.

"Very well made. Stainless steel. Great value." Read more

"...Since they are made of stainless steel they should last me a long time and not all rust up like the old ones." Read more

"Nice stainless bolts/washers/nuts..." Read more

Used for my spare tire carrier
5 Stars
Used for my spare tire carrier
I used these bolts for my latest trailer build. They worked perfect.
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Top reviews from the United States

Reviewed in the United States on February 23, 2024
Size: 1/4-20 x 1-3/4" (10 Sets)Verified Purchase
Reviewed in the United States on January 11, 2024
Size: 5/16-18 x 3/4" (10 Sets)Verified Purchase
Reviewed in the United States on December 13, 2023
Size: 1/4-20 x 2" (10 Sets)Verified Purchase
Reviewed in the United States on October 29, 2022
Size: 3/8-16 x 2" (8 Sets)Verified Purchase
One person found this helpful
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Reviewed in the United States on November 9, 2023
Size: 1/4-20 x 3" (10 Sets)Verified Purchase
Reviewed in the United States on February 19, 2024
Size: 1/4-20 x 4" (10 Sets)Verified Purchase
Reviewed in the United States on February 27, 2024
Size: 1/4-20 x 2-1/2" (10 Sets)Verified Purchase
Reviewed in the United States on October 22, 2023
Size: 1/4-20 x 3/4" (10 Sets)Verified Purchase