Bolts for Indoor and Outdoor Use, Structural Strength and Long-Term Fastening Performance
Craftsman Hardware supplies a comprehensive range of bolts engineered for both indoor and outdoor use. From zinc-coated bolts for interior installations to A4 stainless steel and hot-dip galvanised options for outdoor durability, our range provides reliable fastening solutions for structural, industrial, and general-purpose applications.
Bolts are essential where components need to be clamped securely and remain stable under load, vibration and long-term service conditions. They are widely used in steelwork, timber framing, machinery mounting and general construction, where strength and dependable fastening are critical. Choosing the right bolt for the environment is just as important as choosing the correct size or grade. Indoor applications often suit zinc-coated bolts in controlled conditions, while exposed outdoor work demands materials and finishes that resist corrosion and weathering over time.
What you’ll find in this range
This range includes hex bolts for general-purpose structural fastening, coach bolts for timber connections, flanged bolts for improved bearing area, socket head bolts for tighter access applications, and high-tensile bolts for heavier-duty structural and industrial work.
Suitable for structural steel connections, concrete base mounting, timber framing, outdoor infrastructure, machinery assembly, and general fastening tasks where load capacity, corrosion resistance and long-term reliability all matter.
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$2.33 - $11.62Availability Check availability -
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HSI 20 mm Cup Head Steel Silver Zinc Carriage Bolt (Pack of 50)
$3.23 - $16.15Availability Check availability -
HSI 20 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 200)
$11.64Availability Check availability -
HSI Full Thread x 16 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 100)
$4.44Availability Check availability -
HSI 16 mm Hexagon Head Stainless Steel Hexagon Head Bolt (Pack of 8)
$1.70 - $16.99Availability Check availability -
HSI 16 mm Hexagon Head Stainless Steel Hexagon Head Bolt (Pack of 25)
$5.05Availability Check availability -
HSI Full Thread x 10 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 50) [689377]
$3.91 - $19.55Availability Check availability -
HSI Full Thread x 10 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 100) [029070]
$3.55Availability Check availability -
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HSI 50 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 8)
$1.42 - $7.09Availability Check availability -
HSI 50 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 25)
$2.58 - $12.85Availability Check availability -
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HSI 50 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 100)
$8.75Availability Check availability -
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HSI Full Thread x 40 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 10)
$1.80 - $17.98Availability Check availability -
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HSI 40 mm Hexagon Head Steel Blue Zinc Hexagon Head Bolt (Pack of 100)
$7.38Availability Check availability -
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HSI 40 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 200)
$11.80Availability Check availability -
HSI 50 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 200)
$12.07Availability Check availability -
HSI Full Thread x 40 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 50) [689360]
$5.91 - $29.52Availability Check availability -
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HSI 40 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 100)
$7.88Availability Check availability -
HSI 40 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 25)
$2.33 - $11.62Availability Check availability -
HSI 40 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 8)
$1.45 - $7.25Availability Check availability -
HSI Full Thread x 20 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 14)
$1.58 - $15.83Availability Check availability -
HSI 30 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 100)
$6.81Availability Check availability -
HSI 30 mm Hexagon Head Steel Blue Zinc Hexagon Head Bolt (Pack of 100)
$5.13Availability Check availability -
HSI 25 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 100)
$7.11Availability Check availability -
HSI 30 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 25)
$2.15 - $10.72Availability Check availability -
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HSI 30 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 500)
$23.50Availability Check availability -
HSI Full Thread x 20 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 100)
$4.81Availability Check availability -
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HSI 20 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 12)
$1.40 - $14.02Availability Check availability -
HSI 10 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 14)
$1.37 - $13.68Availability Check availability -
HSI 30 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 10)
$1.42 - $7.09Availability Check availability -
HSI 25 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 500)
$20.61Availability Check availability -
HSI 16 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 500)
$17.48Availability Check availability -
HSI 25 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 25)
$1.97 - $9.89Availability Check availability -
HSI Full Thread x 30 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 50) [689353]
$4.37 - $21.85Availability Check availability -
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HSI Full Thread x 10 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 100)
$4.49Availability Check availability -
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HSI 20 mm Round Head Steel Silver Zinc Round Head Bolt (Pack of 500)
$19.29Availability Check availability -
HSI Full Thread x 30 mm Hexagon Head Steel Silver Zinc Hexagon Head Bolt (Pack of 10) [694869]
$1.60 - $8.00Availability Check availability -
HSI 16 mm Hexagon Head Steel Blue Zinc Hexagon Head Bolt (Pack of 100)
$4.55Availability Check availability -