Finding the best carriage bolts 5/16 suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Hard-to-Find Fastener 014973453701 Carriage Bolts (15 Piece), 5/16-18 x 1-1/2"
Feature
Diameter 1: 5/16 inchesDiameter 2: 23/32 inches
Length: 1-1/2 inch
Material: Steel
Finish: Zinc
Description
We stock a wide variety Of fasteners ideal For many applications around the home, farm, business, automotive, And in industry. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finish. We also sell coated And stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable For all applications so be certain To test thoroughly And Get the opinion Of a licensed builder Or certified building Or structural engineer before relying On these fasteners For any situations where failure would result In damage To Property Or person.2. 18-8 Stainless Steel Carriage Bolt, Plain Finish, Square Neck, Round Head, Meets ASME B18.5/ASTM F593, 6" Length, Fully Threaded, 5/16"-18 UNC Threads (Pack of 5)
Feature
18-8 stainless steel provides good corrosion resistance and strengthPlain surface has no finish or coating
Square neck prevents the bolt from turning once installed, even when a nut is tightened
Round head has a domed shape
Meets ASME B18.5 and ASTM F593 specifications
Description
The 18-8 stainless steel carriage bolt with plain finish has a square neck with round head and meets American Society of Mechanical Engineers ASME B18.5 and ASTM F593 specifications. The 18-8 stainless steel material provides strength and offers good corrosion resistance in many environments. The material may be slightly magnetic. The square neck prevents the bolt from turning once installed, even when a nut is tightened. The round head has a domed shape.
Carriage bolts, also called round head square neck bolts, are square-necked threaded fasteners commonly used in wood fastening applications. The bolts square neck prevents it from turning once installed using a nut.
3. CARRIAGE BOLT DOUBLE SET (5/16"x1") fastens 2 SNAPLOCS E-Track Singles
Feature
Fastens two SNAPLOCS E-Track Singles to structural metal framing.Easy no bolt spin installation with square neck.
Carriage Bolts 5/16"x1" with zinc platted finish and 5/16"x1-1/2" Fender Washers with Nyloc Nuts.
Description
Fastens two SNAPLOCS E-Track Singles to structural metal framing and provides an easy no bolt spin installation! Carriage Bolts are 5/16-18"x1" with zinc platted finish and include 5/16"x1-1/2" Fender Washers and 5/16-18" Nyloc Nuts. Snap-Loc also offers a variety of System Accessories, Straps and other Fastener Sets for most every type of application. Snap-Loc is Ultimate Cargo Control!4. Hard-to-Find Fastener 014973453671 Carriage Bolts (25 Piece), 5/16-18 x 3/4"
Feature
Diameter 1: 5/16 inchesDiameter 2: 23/32 inches
Length: 3/4 inches
Material: Steel
Finish: Zinc
Description
We stock a wide variety of fasteners ideal for many applications around the home, farm, business, automotive, and in industry. Most of our fasteners have a light Zinc plating over steel giving a more rust resistant finish. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications so be certain to test thoroughly and get the opinion of a licensed builder or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person.5. Hillman 240108 Carriage Bolt, 5/16 x 3-1/2-Inch, Steel, Zinc-Plated, Silver, 50-Pack
Feature
Carriage Bolts are designed to fasten a wooden face to either wood or metalFlat head provides a semi-flush finish to applications
The heads is designed to eliminate the need for a washer
Square underside of the head is self locking to eliminate the need for a driving tool
Zinc Finish provides a beautiful, consistent finish
Description
Carriage Bolts are designed to fasten a wooden face to either a wood or metal frame. Its flat head is designed to eliminate the need for a washer and provide a semi-flush finish to applications. The square underside of the head is self locking to eliminate spinning and the need for a driving tool. The zinc plating is rust resistant and provides a beautiful, consistent finish; but, may not work for all exterior projects.6. Hard-to-Find Fastener 014973230746 Carriage Bolts, 5/16-18 x 3/4-Inch, 100-Piece
Feature
Diameter: 5/16-InchLength: 3/4-Inch
Material: Steel
Finish: Zinc
Head Style: Carriage
Diameter: 5/16"
Length: 3/4 inches
Description
We stock a wide variety of fasteners ideal for many applications arround the home, farm, business, automotives, and in industry. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finsh. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications so be certain to test thouroughly and get the opinion of a licensed building or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person.7. Hillman 812563 Hot Dipped Galvanized Carriage Bolt, 5/16 x 6-Inch, Silver, 50-Pack
Feature
Carriage Bolts are designed to fasten a wooden face to either wood or metalFlat head provides a semi-flush finish to applications
The heads is designed to eliminate the need for a washer
Square underside of the head is self locking to eliminate the need for a driving tool
Galvanized finish is perfect for rust prevention
Description
Carriage Bolts are designed to fasten a wooden face to either a wood or metal frame. Its flat head is designed to eliminate the need for a washer and provide a semi-flush finish to applications. The square underside of the head is self locking to eliminate spinning and the need for a driving tool. The galvanized finish provides optimal rust prevention but can be chalky in appearance.8. (75Pc) Hot Dipped Galvanized Carriage Bolts 5/16-18 X 4
Description
Hot Dipped Galvanized Carriage Boltsmaterial: Galvanized Size: 5/16-18 Diameter X 4" Long Quantity: 75 Pieces Per Lot9. Prime-Line 9062982 Carriage Bolt, 5/16 in-18 X 2 in, Grade 18-8 Stainless Steel, Pack of 15
Feature
Diameter-Thread Size & Length:Features a smooth rounded head as opposed to a standard hex head
Square shoulder allows for nut to be tightened or loosened
Often used in cases where a protruding bolt head could cause injury
Nuts and washers not included, ensure washers and nuts are same diameter
Specifications Met: ASME B18.5 & ASTM F593/1
Thread Class: UNC-2A Thread Type: COARSE
Description
Carriage bolts feature a slightly rounded head and have no exposed sharp edges when fully fastened. Due to that reason, they are often used when a more aesthetic look is desired. They are commonly used on docks and on playground equipment or in cases where it may be difficult to reach the bolt head with a tool. The square shoulder on carriage bolts help to hold it in place while the nut is fastened.10. 5/16-18 x 1-1/4" Carriage Bolts, Round Head, Square Neck, Stainless Steel 18-8, Full Thread, Plain Finish, Flat Point, Quantity 25
Feature
Thread Diameter 0.3125"Head Diameter 0.719"
Head Height 0.176"
Square Neck Height 0.187" / Square Neck Width 0.32"
18-8 Stainless Steel provides strength and offers good corrosion resistance in many environments.
Description
A carriage bolt, coach bolt or round head square neck bolt is used through iron strengthening plates on either side of a wooden beam. It is commonplace though to use them on bare timber, the squared section giving enough grip to prevent rotation. Carriage bolts are extensively used in security fixings where the bolt must only be removable from one side. The smooth domed head and square neck below prevent the carriage bolt from being unlocked from the insecure side.11. Prime-Line 9063058 Carriage Bolt, 5/16 in-18 X 3 in, Zinc Plated Steel, Pack of 50
Feature
Diameter-Thread Size & Length: 5/16 inch-18 X 3 inchFeatures a smooth rounded head as opposed to a standard hex head
Square shoulder allows for nut to be tightened or loosened
Often used in cases where a protruding bolt head could cause injury
Nuts and washers not included, ensure washers and nuts are same diameter
Specifications Met: ASME B18.5 & ASTM A307A
Thread Class: UNC-2A Thread Type: COARSE
Description
Carriage bolts feature a slightly rounded head and have no exposed sharp edges when fully fastened. Due to that reason, they are often used when a more aesthetic look is desired. They are commonly used on docks and on playground equipment or in cases where it may be difficult to reach the bolt head with a tool. The square shoulder on carriage bolts help to hold it in place while the nut is fastened.12. 5/16-18 x 2" Carriage Bolts, Round Head, Square Neck, Stainless Steel 18-8, Full Thread, Plain Finish, Flat Point, Quantity 25
Feature
Thread Diameter 0.3125"Head Diameter 0.719"
Head Height 0.176"
Square Neck Height 0.187" / Square Neck Width 0.32"
18-8 Stainless Steel provides strength and offers good corrosion resistance in many environments.
Description
A carriage bolt, coach bolt or round head square neck bolt is used through iron strengthening plates on either side of a wooden beam. It is commonplace though to use them on bare timber, the squared section giving enough grip to prevent rotation. Carriage bolts are extensively used in security fixings where the bolt must only be removable from one side. The smooth domed head and square neck below prevent the carriage bolt from being unlocked from the insecure side.13. Prime-Line 9063115 Carriage Bolt, 5/16 in-18 X 3-1/2 in, Zinc Plated Steel, Pack of 50
Feature
Diameter-Thread Size & Length: 5/16 inch-18 X 3-1/2 inchFeatures a smooth rounded head as opposed to a standard hex head
Square shoulder allows for nut to be tightened or loosened
Often used in cases where a protruding bolt head could cause injury
Nuts and washers not included, ensure washers and nuts are same diameter
Specifications Met: ASME B18.5 & ASTM A307A
Thread Class: UNC-2A Thread Type: COARSE