Mild Steel Bolts

Extensively used in most industries including construction, timber, engineering & mining.

Serrated Flanged Bolts

Serration prevents loosening of the bolts under strenuous conditions. Used in industries including timber and construction.

Countersunk Square Neck Bolts

Also known as Plough Bolts, these bolts are used wherever a countersunk finish is required - primarily in steel ant timber applications. 

Countersunk Nib

A Countersunk Nib is a bolt with a nib on one side to prevent the bolt from turning when fastening the nut. 

U-Bolt

A U-Bolt has a U shaped shank that is threaded on both ends. This fastener is used for fastening to tubular objects such as poles. 

BOLT TYPE FASTENERS

Carriage Bolts

Also known as a “coach” bolt, has a domed or countersunk head. The square section under the head grips into the part being fastened preventing the bolt from turning when the nut is tightened.

Hex Head Bolts

Hex tap bolts, hex cap screws, trim head hex cap screws, and hex serrated flange bolts fall under this category. They share a hexagonal head and are driven with a wrench. Can be used with or without washers in both timber and steel applications. These bolts are partially threaded.

Plating

Zinc

Yellow Zinc

Black Japan

Hot Dip Galvanised

Threading

Metric

Metric Fine

Metric Extra Fine

Imperial

 

Diameters

M5 and upwards

 

 

Materials

Mild Steel (MS) Grade 4.8

High Tensile (HT) Grade 8.8

High Tensile (HT) Grade 10.9

High Tensile (HT) Grade 12.9

Stainless Steel (SS) A2 - 304

Stainless Steel (SS) A4 - 316

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Red Hill

Durban North

4019

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