- 20% off
From The Anvil
From The Anvil - Black 4" Cranked Door Bolt
Sale price £24.73 (Inc. VAT) Normal Price: £30.91 £20.61 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Black 6" Cranked Door Bolt
Sale price £36.74 (Inc. VAT) Normal Price: £45.92 £30.62 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Beeswax 6" Cranked Door Bolt
Sale price £36.74 (Inc. VAT) Normal Price: £45.92 £30.62 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Beeswax 4" Cranked Door Bolt
Sale price £24.73 (Inc. VAT) Normal Price: £30.91 £20.61 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Beeswax 6" Cranked Knob Bolt
Sale price £43.08 (Inc. VAT) Normal Price: £53.86 £35.90 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Beeswax 4" Cranked Knob Bolt
Sale price £29.53 (Inc. VAT) Normal Price: £36.91 £24.61 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Black 4" Cranked Monkeytail Bolt
Sale price £14.73 (Inc. VAT) Normal Price: £18.41 £12.28 (Ex. VAT)Unit price /Unavailable -
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From The Anvil
From The Anvil - Black 6" Cranked Monkeytail Bolt
Sale price £21.29 (Inc. VAT) Normal Price: £26.62 £17.74 (Ex. VAT)Unit price /Unavailable -
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From The Anvil
From The Anvil - Pewter 4" Cranked Door Bolt
Sale price £30.42 (Inc. VAT) Normal Price: £38.03 £25.35 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Pewter 6" Cranked Door Bolt
Sale price £45.42 (Inc. VAT) Normal Price: £56.77 £37.85 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Pewter 4" Cranked Knob Bolt
Sale price £32.81 (Inc. VAT) Normal Price: £41.02 £27.34 (Ex. VAT)Unit price /Unavailable -
- 20% off
From The Anvil
From The Anvil - Pewter 6" Cranked Knob Bolt
Sale price £47.72 (Inc. VAT) Normal Price: £59.65 £39.77 (Ex. VAT)Unit price /Unavailable -
Product Uses, Benefits & Installation
Why Choose Cranked Surface Bolts (Necked Bolts)?
Cranked surface bolts — also called necked bolts or offset frame bolts — are designed for doors and windows with projecting frames where a standard straight bolt wouldn’t fit. The cranked design allows smooth and secure engagement, making them perfect for stable doors, French doors, barn doors, timber gates, and external entrances.
Our range includes forged iron, machined brass, and precision stainless steel cranked bolts, available in sizes from 75 mm to 300 mm, with matching surface keeps, angle keeps, and strike plates.
Installation Tips
- Vertical fitting: Align the bolt parallel to the frame and ensure the throw drops cleanly into the keep.
- Horizontal fitting: Match the strike plate to the crank’s bend for full engagement.
- Measure bolt length, throw depth, and crank angle before replacing an existing unit to ensure a perfect fit.
Finishes, Materials & UK Supply
Premium Finishes for Every Project
Choose from heritage-inspired finishes like Antique Black, Beeswax, Aged Brass, and Pewter Patina, or go modern with Matt Black, Urban Bronze, Satin Nickel, or Polished Stainless Steel. For coastal and outdoor applications, we recommend 316 marine-grade stainless steel for maximum corrosion resistance.
All finishes are tested for strength, durability, and weather resistance, ensuring they look great and perform flawlessly in any setting.
Trusted UK Suppliers
We stock cranked surface bolts from From The Anvil, Carlisle Brass, and Heritage Brass — brands trusted by professionals and DIYers alike.
Available for next-day delivery to London, Manchester, Birmingham, Glasgow, Leeds, Bristol, and across the UK, with bulk trade pricing and technical datasheets available.
Frequently Asked Questions
What is a cranked surface bolt?
What is a cranked surface bolt?
A cranked surface bolt, sometimes called a necked bolt, is designed with a bent throw to reach over an offset frame or architrave, providing secure engagement where a straight bolt wouldn’t fit.
Where are cranked bolts used?
Where are cranked bolts used?
They are commonly fitted to stable doors, French doors, timber gates, barn doors, and windows where the frame projects beyond the door leaf.
Can cranked bolts be used outdoors?
Can cranked bolts be used outdoors?
Yes, but for outdoor or coastal use, we recommend marine-grade 316 stainless steel or powder-coated finishes for maximum corrosion resistance.
What finishes are available?
What finishes are available?
Our cranked bolts come in a wide range of finishes including Antique Black, Beeswax, Matt Black, Pewter, Polished Brass, Satin Nickel, and 316 Marine Stainless Steel.
How do I choose between a cranked and straight surface bolt?
How do I choose between a cranked and straight surface bolt?
If your door or window frame is flush with the leaf, use a straight bolt. If the frame is proud of the leaf, a cranked bolt will bridge the gap securely.
Do you supply trade orders?
Do you supply trade orders?
Yes, we supply to both trade and retail customers, with competitive pricing for bulk orders and next-day delivery across the UK.
Related Hardware & Project Matching
Complete Your Project with Matching Hardware
Pair your cranked surface bolts with door hinges, window fasteners, latches, and door handles in matching finishes for a consistent, professional look.
Also explore our related categories:
- Straight Surface Bolts – for flush-frame applications
- Flush Bolts – concealed locking solutions
- Espagnolette Surface Bolts – secure multi-point locking systems
Whether you’re restoring a period property or fitting out a contemporary build, our collection ensures both style and security.