Carriage Bolts
Also known as a “Cup Square” bolt, has a domed head. The square section under the head grips into the part being fastened preventing the bolt from turning when the nut is tightened.
DIN 603 Mild Steel Cup Square Bolt
Hex Head Bolts
Hex head bolts, Available in Mild Steel or High Tensile and also in some exotic materials for extra corrosion resistance or strength. These have 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.
DIN 601 GR 4.6 - Mild Steel
DIN 931 GR 8.8 - Hi-Tensile
DIN 931 GR 10.9 - Hi-Tensile
DIN 931 GR 5 - Hi-Tensile (UNC)
DIN 931 GR 5 - Hi-Tensile (UNF)
Hex Head Set Screws
Extensively used in most industries including construction, timber, engineering and mining. Available in Mild Steel or High Tensile as well as in different plating types.
DIN 558 GR 4.6 Mild Steel
Hex Head Set Screw
DIN 934 + 558 GR 4.6 Mild Steel XOX (Hex Set and Nut)
​
Serrated Flanged Bolts
Serration prevents loosening of the bolts under strenuous conditions. Used in industries including timber and construction.
DIN 6921 Serrated flange bolt
​
Countersunk Square Neck Bolts
Also known as Plough Bolts, these bolts are used wherever a countersunk finish is required - primarily in steel and timber applications.
DIN 605 Mild Steel Countersunk Square Neck Bolt
Countersunk Nib
A Countersunk Nib is a bolt with a nib on one side to prevent the bolt from turning when fastening the nut.
DIN 604 Mild Steel Countersunk Nib Bolt
​
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
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
​
Plating
Zinc
Yellow Zinc
Black Japan
Hot Dip Galvanised
Threading
Metric
Metric Fine
Metric Extra Fine
Imperial
​
Diameters
M5 and upwards
​
Contact Us
Follow Us On Social Media
Visit Us
Industries
Telephone
Tel: 031-569 2640
Office Cell/ WhatsApp:
081 026 0006
• Mining
• Engineering
• Construction
• OEM
• Automotive
• Agricultural
• Food & Processing
Unit A1, Glen Murray Industrial Park
13 Moreland Drive
Red Hill
Durban North
4019
​
• Rail
• Sugar
• Paper & Pulp
• Timber
• Distributors / Resellers
• Solar Fasteners
© 2023 by The Fastener Factory