Shopping.co.uk

Unifix Bolts - Silver - M12 X 60

Unifix Bolts - Silver - M12 X 60

The Unifix A2-304 St/St Cup Square Hex Bolts are designed for durability and strength in various a...

Best current price£13.13from OnBuy.com

Best offers

Shopping.co.uk recommended and popular offers

Lowest priceMost popular
OnBuy.com£13.13Visit shop

Unifix A2-304 St/St Cup Square Hex Bolts M8 X 35 - Q206030000800035000 - Box Of 100 5014196640860

Visit shop
Trusted
The Range£14.88Visit shop

Unifix A2-304 Stainless Steel Cup Square Hex Bolts Din 603 - M8 X 35 (Box Of 100) - White

Visit shop

All Offers

9 offers from £13.13 - £27.72

View price history by clicking the chart icon.

OnBuy.comUnifix A2-304 St/St Cup Square Hex Bolts M8 X 35 - Q206030000800035000 - Box Of 100 5014196640860
Free delivery in 1–3 days
£13.13
Visit shop
The RangeUnifix A2-304 Stainless Steel Cup Square Hex Bolts Din 603 - M8 X 35 (Box Of 100) - White
Free delivery in 1–3 days
£14.88
Visit shop
eBayUnifix A2-304 St/St Cup Sq Hex Bolts M8 x 35 Box of 100
Free delivery in 1–3 days
£15.52
Visit shop
B&QB&Q - A2-304 St/st Cup Square Hex Bolts M8 X 35Q206030000800035000Perfect For Diy ProjectsBox Of 100
Free delivery in 1–3 days
£16.98
Visit shop

Product Information

Full details

The Unifix A2-304 St/St Cup Square Hex Bolts (M12 x 60) are designed for professionals in construction and engineering seeking robust fastening solutions. Their key benefit is superior corrosion resistance and strength for structural applications, though their square head may require specific tooling for installation and removal compared to standard hex bolts. These bolts offer a reliable connection for demanding projects.

All features

ColourSilver
Model Part NumberQ206030001200060000
BrandUnifix

Extended Product Information

FAQs

What does 'A2-304' refer to?

A2-304 is a grade of stainless steel. It indicates good corrosion resistance, making it suitable for general use in outdoor and industrial environments. It is also known as 18/8 stainless steel.

What is the purpose of the cup square head?

The cup square head design has a domed top and a square neck beneath it. The square neck is designed to lodge into the material being fastened, preventing the bolt from spinning while you tighten the nut.

Can I use these bolts in marine environments?

A2-304 stainless steel offers good resistance to corrosion, including from saltwater. However, for prolonged or severe marine exposure, A4 (316) grade stainless steel is generally recommended for superior protection.

What standard do these bolts meet?

These Unifix bolts are designed to meet DIN 603 standards, which specify requirements for cup square bolts (also known as carriage bolts).

What size nut and washer should I use?

These are M12 bolts, so they require M12 nuts and M12 washers for proper fitting.

How do I ensure a strong connection?

Ensure the correct hole size is used, the bolt is inserted straight, and the nut is tightened securely. The square neck's ability to embed into the material is key to preventing rotation and ensuring a stable, tight joint.

Troubleshooting

Bolt does not tighten securely

Check that the nut and washer are the correct M12 size. Ensure the square neck has properly engaged with the material to prevent rotation. Verify the pre-drilled hole is not too large.

Difficulty inserting bolt

Confirm the pre-drilled hole diameter is suitable for an M12 bolt. Ensure there are no obstructions or debris in the hole.

Bolt shows signs of rust or corrosion

While rare for A2-304, check for damage to the protective layer or exposure to highly corrosive substances. Clean the affected area. For persistent issues in extreme environments, consider A4 (316) grade stainless steel.

Square head gets damaged during tightening

Ensure the correct size socket or wrench is used for the square head. Avoid over-tightening if resistance is excessively high, which might indicate a misalignment or obstruction.

Pros and Cons

Pros

  • Exceptional corrosion resistance due to A2-304 stainless steel.
  • High tensile strength suitable for demanding structural applications.
  • Square neck prevents spinning, enabling one-person installation.
  • Meets DIN 603 standards for quality assurance.
  • Durable and long-lasting in various environmental conditions.

Cons

  • Square head requires specific wrench or socket, unlike standard hex bolts.
  • May be heavier than alternative fastening solutions.
  • Larger size M12 can require more significant pre-drilled holes.
  • The silver finish, while attractive, may show minor scratches over time.

Setup, Compatibility & Care

Setup:

  1. Ensure the mating materials have appropriate pre-drilled holes. For M12 bolts, a hole of approximately 12.5mm to 13mm is typically recommended for a snug fit.
  2. Insert the bolt through the materials to be joined.
  3. Place a washer (if required by the application) and a nut onto the threaded end.
  4. Tighten the nut using an appropriate wrench or spanner. The square head's neck will engage with the material, preventing rotation, allowing the nut to be tightened securely.

Compatibility:

  • These bolts are designed to be used with M12 nuts and washers.
  • Compatible with a wide range of construction and engineering materials including wood, metal, and some plastics.
  • Ensure compatibility with the specific environmental conditions; A2-304 is suitable for most general outdoor and indoor uses but may not be ideal for highly aggressive chemical environments.

Care:

  • While A2-304 stainless steel offers excellent corrosion resistance, periodic inspection is recommended, especially in harsh environments.
  • Clean with a damp cloth if dirt or debris accumulates. Avoid abrasive cleaners that could damage the surface finish.
  • Store in a dry, protected area to maintain appearance and prevent premature wear.

Price History

DatePrice
Visit shop