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Bolts
Nuts
Washers
Socket Screws
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Bolts
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Collection: Coarse Thread [UNC]

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761 of 8388 products

Flat Head Machine Screw Full Thread Stainless Steel 5/16-18 * 4" [Philips Drive]

Flat Head Machine Screw Full Thread Stainless Steel 5/16-18 * 4" [Philips Drive]

Regular price $3.00

Regular price ~~$3.00~~ Sale price $3.00
Unit price per
Flat Head Machine Screw Full Thread Stainless Steel 5/16-18 * 5" [Philips Drive]

Flat Head Machine Screw Full Thread Stainless Steel 5/16-18 * 5" [Philips Drive]

Regular price $4.00

Regular price Sale price $4.00
Unit price per
Flat Head Machine Screw Full Thread Zinc 5/16-18 * 2-1/2" [Quadrex Drive]

Flat Head Machine Screw Full Thread Zinc 5/16-18 * 2-1/2" [Quadrex Drive]

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Flat Head Machine Screw Full Thread Zinc 5/16-18 * 4" [Quadrex Drive]

Flat Head Machine Screw Full Thread Zinc 5/16-18 * 4" [Quadrex Drive]

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Flat Head Trailer Floor Wood-Metal Thread-Forming Screw Black-Phosphate Steel 5/16-18 * 2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Trailer Floor Wood-Metal Thread-Forming Screw Black-Phosphate Steel 5/16-18 * 2" Grade 8 [Cup Point] [Allen Drive]

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Flat Head Trailer Floor Wood-Metal Thread-Forming Screw Black-Phosphate Steel 5/16-18 * 2-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Trailer Floor Wood-Metal Thread-Forming Screw Black-Phosphate Steel 5/16-18 * 2-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Flat Head Trailer Floor Wood-Metal Thread-Forming Screw Black-Phosphate Steel 5/16-18 * 3" Grade 8 [Cup Point] [Allen Drive]

Flat Head Trailer Floor Wood-Metal Thread-Forming Screw Black-Phosphate Steel 5/16-18 * 3" Grade 8 [Cup Point] [Allen Drive]

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 3-1/2"

Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 3-1/2"

Regular price From $2.00

Regular price Sale price From $2.00
Unit price per
Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 4-1/2"

Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 4-1/2"

Regular price From $2.00

Regular price Sale price From $2.00
Unit price per
Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 5"

Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 5"

Regular price From $2.00

Regular price Sale price From $2.00
Unit price per
Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 5-1/2"

Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 5-1/2"

Regular price From $2.00

Regular price Sale price From $2.00
Unit price per
Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 6"

Hexagonal Lag Screw Hot Dip Galvanized 5/16 * 6"

Regular price From $2.00

Regular price Sale price From $2.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 1"

Hexagonal Lag Screw Stainless Steel 5/16 * 1"

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 1-1/2"

Hexagonal Lag Screw Stainless Steel 5/16 * 1-1/2"

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 1-1/4"

Hexagonal Lag Screw Stainless Steel 5/16 * 1-1/4"

Regular price $1.00

Regular price Sale price $1.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 1-3/4"

Hexagonal Lag Screw Stainless Steel 5/16 * 1-3/4"

Regular price $2.00

Regular price Sale price $2.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 10"

Hexagonal Lag Screw Stainless Steel 5/16 * 10"

Regular price $37.00

Regular price Sale price $37.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 2"

Hexagonal Lag Screw Stainless Steel 5/16 * 2"

Regular price $2.00

Regular price Sale price $2.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 2-1/2"

Hexagonal Lag Screw Stainless Steel 5/16 * 2-1/2"

Regular price $2.00

Regular price Sale price $2.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 3"

Hexagonal Lag Screw Stainless Steel 5/16 * 3"

Regular price $2.00

Regular price Sale price $2.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 3-1/2"

Hexagonal Lag Screw Stainless Steel 5/16 * 3-1/2"

Regular price $2.00

Regular price Sale price $2.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 4"

Hexagonal Lag Screw Stainless Steel 5/16 * 4"

Regular price $3.00

Regular price Sale price $3.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 4-1/2"

Hexagonal Lag Screw Stainless Steel 5/16 * 4-1/2"

Regular price $3.00

Regular price Sale price $3.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 5"

Hexagonal Lag Screw Stainless Steel 5/16 * 5"

Regular price $3.00

Regular price Sale price $3.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 5-1/2"

Hexagonal Lag Screw Stainless Steel 5/16 * 5-1/2"

Regular price $3.00

Regular price Sale price $3.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 6"

Hexagonal Lag Screw Stainless Steel 5/16 * 6"

Regular price $4.00

Regular price Sale price $4.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 6-1/2"

Hexagonal Lag Screw Stainless Steel 5/16 * 6-1/2"

Regular price $19.00

Regular price Sale price $19.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 7"

Hexagonal Lag Screw Stainless Steel 5/16 * 7"

Regular price $26.00

Regular price Sale price $26.00
Unit price per
Hexagonal Lag Screw Stainless Steel 5/16 * 8"

Hexagonal Lag Screw Stainless Steel 5/16 * 8"

Regular price $40.00

Regular price Sale price $40.00
Unit price per
Hexagonal Nut Brass 5/16-18 Grade 2

Sale

Hexagonal Nut Brass 5/16-18 Grade 2

Regular price From $1.00

Regular price ~~$381.00~~ Sale price From $1.00
Unit price per

Sale
Hexagonal Nut Hot Dip Galvanized 5/16-18

Hexagonal Nut Hot Dip Galvanized 5/16-18

Regular price From $1.00

Regular price ~~$1.00~~ Sale price From $1.00
Unit price per
Hexagonal Nut Nylon Insert 316 Stainless Steel 5/16-18

Hexagonal Nut Nylon Insert 316 Stainless Steel 5/16-18

Regular price $1.00

Regular price ~~$1.00~~ Sale price $1.00
Unit price per

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Thread Type

Coarse Thread [UNC]

Threading

Fully Threaded
Partially Threaded

Imperial Thread (Inch)

5/16-18

British Thread (Inch)

5/16-18

Imperial Length (Inch)

Imperial Length (Feet)

2 Length
4 Length
6 Length
8 Length
10 Length
12 Length

Categories

Bolt
Eye Bolt
Eye Nut
Machine Screw
nut
Pressure screw
Screw-Pin Shackles
Threaded Rod
Lifting
Rivets

System of Measurement

Imperial (Inch)

MATERIAL & PLATING

Black Oxide
Black Phosphate
Brass
Cadium Plated
Copper Nickel
Galvanized
Nickel
Silicone Bronze
Stainless Steel
Steel
Yellow Zinc
Zinc

Stainless Steel Grade

316 Stainless Steel

Grade

*Grade* 2
*Grade* 5
*Grade* 8
*Grade* 9
*Grade* B7
*Grade* 80

Shape

Square

Fasteners Type

Button Head Cap Screw
Cap
Conical
Coupling
Elevator
Flanged
Flat Head
Flat Head Cap Screw
Full Thread
Hexagonal
K Lock
Lag Screw
Nylon Insert
Pan Head
Round Head
Set Screw
Shoulder Screw
Socket Head Cap Screw
Square Screw
Tee Nut
Trailer Floor Screw
Truss Head
Undercut Flat Head
Weldable
Wing
Hook
Square

Thread Direction

Right Thread

Point Type

Cup
Dog
Full Dog
Knurled
Cone Point
Flat Point
Brass Point
Nylon Point
Oval Point

Drive

Allen
Philips
Quadrex
Slotted
Square

Head

Square
Standard

Classification

Asme B19 2 1
Sae J429
Asme B18 5
Ifi 111
Ansi Asme B 18 5
Astm A307

Color

Yellow

Country/region

Canada CAD $
United States USD $

Payment methods

© 2025, Les Attaches RJM

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