Delivery $2.50 
Minimum order $10
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| Grade | Description |
|---|---|
| Stainless G304 (A2) | Suitable for standard applications, providing robust corrosion resistance and durability. (Popular) |
SELECTING PITCH
Pitch refers to the distance between threads.
*Imperial pitch is measured as the number of threads per inch (TPI), meaning how many threads fit within a one inch distance
SELECTING SIZE
[example: 1/4″ – 20tpi (m6.3)
1/4″ = 1/4″ thread diameter
*UNC 1/4″ – 20tpi bolts fit UNC 1/4″ – 20tpi nuts and 1/4″ washers.
*Screw diameter measured from the outer thread.
SELECTING LENGTH
The head is not included in the stated length for Hex Bolts Imperial, only the shank is measured
SELECTING GRADE
Stainless G304 (A2)
Suitable for standard applications, providing robust corrosion resistance and durability. (Popular)
[Good Corrosion Resistance] [Grey-Silver]
Stainless G316 (A4)
Ideal for marine and kitchen environments, offering superior corrosion protection.
[Great Corrosion Resistance] [Grey-Silver]
Alloy Steel (8.8 / 10.9) Zinc
High-tensile strength alloy steel with a sacrificial zinc coating, suitable for heavy-duty applications.
8.8 = 800MPa ultimate tensile strength
10.9 = 1000MPa ultimate tensile strength
[Okay Corrosion Resistance] [Silver]
Alloy Steel (8.8 / 10.9) Black
High-tensile strength alloy steel with minimal corrosion resistance, used for demanding applications.
8.8 = 800MPa ultimate tensile strength
10.9 = 1000MPa ultimate tensile strength
[Poor Corrosion Resistance] [Uncoated Black / Black Oxide]
For optimal performance and to reduce the risk of galvanic corrosion, it is recommended to use materials of the same grade in applications where corrosion resistance is critical.
✨Stainless Steel Polishing
Bright, polished finish for stainless steel hardware.
*not mirror finish
*Delivery time may increase by up to 2 day
*Coupons and pricing discounts do not apply
Cost: $5 minimum or +15% product price
⬛ Stainless Steel Blackening
Durable, non-reflective black finish for stainless steel hardware.
Suitable for internal and external use.
*Select Grade: Stainless G304 or G316 to enable
*Delivery time may increase by up to 14 days
*Coupons and pricing discounts do not apply
*$30 minimum blackening charge (may be shared across multiple selections through site; fee applies if minimum is not reached).
Cost: 2x product price. For example: $30 product + $30 Blackening
Match with Metric Coarse or Fine Thread Nuts & Washers below
https://nutbolt.com.au/product-category/stainless-nuts/
https://nutbolt.com.au/product-category/stainless-steel-washers/
Buy online now! Next day delivery selectable at checkout
Contact us via live chat or email if you have any questions about our Hex Bolts Imperial or any other product
UNC Pitch
#8-32 Threads Per Inch
#10-24 Threads Per Inch
1/4″-20 Threads Per Inch
5/16″-18 Threads Per Inch
3/8″-16 Threads Per Inch
1/2″-13 Threads Per Inch
Product may include grade markings; message us the size to confirm
| Pitch | UNC (Unified National Coarse) [standard], UNF (Unified National Fine) |
|---|---|
| Size | 1/4" – 20tpi (M6.35), 1/4" – 28tpi (M6.35), 5/16" – 18tpi (M7.93), 5/16" – 24tpi (M7.93), 3/8" – 16tpi (M9.52), 3/8" – 24tpi (M9.52), 7/16" – 14tpi (M11.11), 7/16" – 20tpi (M11.11), 1/2" – 13tpi (M12.7), 1/2" – 20tpi (M12.7), 5/8"-11p (M15.88), 3/4" (M19.05) |
| Length | 1/4" (6.5mm), 3/8" (9.5mm), 1/2" (12.7mm), 5/8" (15.8mm), 3/4" (19mm), 1" (25.4mm), 1 1/4" (31.8mm), 1 1/2" (38.1mm), 1 3/4" (44.5mm), 2" (50.8mm), 2 1/4" (57.2mm), 2 1/2" (63.5mm), 2 3/4" (69.8mm), 3" (76.2mm), 3 1/4" (82.5mm), 3 1/2" (88.9mm), 3 3/4" (95.2mm), 4" (101.6mm), 4 1/2" (114.3mm), 5" (127mm), 5 1/2" (139.7mm), 6" (152.4mm) |
| Thread | Full Thread, Partial Thread |
| Grade | Stainless G304 (A2), Alloy Steel (8) Zinc |
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