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Two fully threaded A2 stainless steel metric hexagon head bolts (DIN 933) on a white background
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, key benefits: full-length thread, A2 stainless steel, hex head for a spanner or socket
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, applications: fencing, gates and balustrades; garden and decking furniture; bracket and frame fixing; general engineering and DIY
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, three bolts of different sizes shown in hand for scale
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, size guide: 84 sizes from M3 to M14, packs of 10 or 50
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, how to install: match the spanner to s, no grip length to calculate, leave room for the nut, tighten to a firm torque
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, dimensions: across flats (s), head height (k) and lengths for all 84 sizes, M3 to M14
Five A2 stainless steel hex head bolts of different diameters and lengths, three standing and two lying, on a white background
Four fully threaded A2 stainless steel hex head bolts of different lengths on a white background
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017 infographic: fully threaded, general purpose, corrosion-resistant A2 stainless steel
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1 / 10 Tap or click the photo to zoom in.
Two fully threaded A2 stainless steel metric hexagon head bolts (DIN 933) on a white background
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, key benefits: full-length thread, A2 stainless steel, hex head for a spanner or socket
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, applications: fencing, gates and balustrades; garden and decking furniture; bracket and frame fixing; general engineering and DIY
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, three bolts of different sizes shown in hand for scale
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, size guide: 84 sizes from M3 to M14, packs of 10 or 50
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, how to install: match the spanner to s, no grip length to calculate, leave room for the nut, tighten to a firm torque
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017, dimensions: across flats (s), head height (k) and lengths for all 84 sizes, M3 to M14
Five A2 stainless steel hex head bolts of different diameters and lengths, three standing and two lying, on a white background
Four fully threaded A2 stainless steel hex head bolts of different lengths on a white background
DIYUK A2 Stainless Steel Hexagon Head Bolts, DIN 933 / ISO 4017 infographic: fully threaded, general purpose, corrosion-resistant A2 stainless steel

Bolts & Threaded Rod

DIYUK A2 Stainless Steel Hexagon Head Bolts (DIN 933 / ISO 4017), Fully Threaded Metric Hex, M3 M4 M5 M6 M8 M10 M12 M14 up to 100mm, Packs of 10 or 50

£4.48£5.60inc. VAT£3.73 ex. VAT

20% off applied

Pack Quantity 10 pcs
Bolt Size M3 x 10mm
In stock
  • Free standard UK delivery, or Next Day Delivery for £0.99 (order by 2pm)
  • Order before 2pm Mon–Fri for same-day dispatch
  • 60-day returns
  • VAT invoices for business customers
Overview

DIYUK A2 stainless steel hexagon head bolts, fully threaded to DIN 933 / ISO 4017: the standard fully-threaded hex bolt for applications where maximum thread engagement matters, from garden and fencing projects through to general construction and engineering assembly. Choose from 84 sizes, M3 x 10mm to M14 x 100mm, each in a pack of 10 or 50.

The full-length thread runs along the entire shank, so unlike a partially threaded DIN 931 equivalent, there's no unthreaded section to account for: the thread engages regardless of the thickness of material being clamped, which makes these a safer general-purpose choice when you're not certain exactly how much grip length you'll need. The hexagon head accepts a standard spanner, socket or ratchet, allowing higher torque application than a slotted or Phillips drive, for a precise, secure, vibration-resistant joint.

A2 stainless steel is the standard general-purpose grade of stainless fastener, and resists rust and unsightly staining far better than plain or zinc-plated steel: the fixing keeps its appearance through years of outdoor exposure rather than developing rust streaks that can mark the surrounding material. Its corrosion resistance extends the life of the bolt, and the sleek stainless finish blends in well with surrounding structural elements, so the same bolt suits both construction and decorative uses. It suits general outdoor, architectural and DIY use.

Key Features

  • Manufactured to DIN 933 / ISO 4017, the recognised standards for fully threaded hexagon head bolts
  • Full-length ISO metric thread runs along the entire shank, so it engages regardless of the thickness of the material being clamped: no need to calculate an exact grip length before ordering
  • Hexagon head takes a standard spanner, socket or ratchet, allowing higher torque than a slotted or Phillips drive for a secure, vibration-resistant joint
  • Made from A2 stainless steel, the standard general-purpose grade of stainless fastener
  • Resists rust and unsightly staining far better than plain or zinc-plated steel, keeping its appearance through years of outdoor exposure
  • Corrosion resistance extends the life of the bolt and maintains its appearance
  • Sleek stainless finish that blends in with structural and decorative elements
  • Suited to general outdoor, architectural and DIY use
  • Available from M3 to M14 diameter, with lengths from 10mm to 100mm depending on diameter, in packs of 10 or 50
  • Across-flats and head-height dimensions given for every size below, for straightforward spanner or socket selection

Specification

Size Across flats (s) Head height (k) Lengths (mm)
M3 5.5mm 2.0mm 10, 16, 20, 25, 30, 40
M4 7mm 2.8mm 10, 16, 20, 25, 30, 40, 50, 60
M5 8mm 3.5mm 10, 16, 20, 25, 35, 40, 45, 50, 55, 60, 70
M6 10mm 4.0mm 10, 16, 20, 25, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100
M8 13mm 5.3mm 10, 16, 20, 25, 30, 35, 40, 45, 50, 60, 65, 70, 75, 80, 90, 100
M10 17mm 6.4mm 12, 16, 20, 25, 30, 40, 50, 60, 70, 80, 90, 100
M12 19mm 7.5mm 16, 20, 30, 40, 50, 60, 70, 80, 90, 100
M14 22mm 8.8mm 25, 40, 60, 70, 100

Material: A2 stainless steel · Standard: DIN 933 / ISO 4017 · Thread: Fully threaded, ISO metric thread · Head type: Hexagon, for spanner or socket drive · Lengths: 10mm to 100mm, range varies by diameter · Pack sizes: 10 or 50

Typical Applications

  • Fencing, gates, railings and balustrades: the corrosion-resistant finish keeps outdoor fixings free of rust streaks and staining long after the timber, panels or ironmongery around them have weathered; ideal for fences, railings and decorative outdoor elements
  • Garden, decking and patio furniture assembly: the full-length thread accommodates the varying frame and timber thicknesses typical of flat-pack and DIY builds without needing to work out grip length in advance
  • Outdoor construction and general structural fixing: a dependable, corrosion-resistant fastener for securing structural components exposed to the weather, where appearance and longevity both matter
  • Bracket and frame fixing: the hexagon head allows a spanner, socket or ratchet to draw the joint up tight, giving a secure fix that resists loosening under vibration or repeated movement
  • General maintenance and repair work: the stocked size range (M3 to M14, 10mm to 100mm) covers most everyday replacement-fastener needs from a single supplier, where durability and corrosion resistance matter
  • General engineering and DIY projects: wherever a corrosion-resistant, fully threaded fastener is called for in preference to a partially threaded DIN 931 equivalent

Installation Guidance

Match your spanner or socket to the across-flats (s) dimension for the diameter you're using, from the specification table above: a snug-fitting tool reduces the risk of rounding the hexagon head corners, particularly when applying higher torque. Because the thread runs the full length of the shank, you don't need to calculate an exact grip length before ordering: simply choose a length that suits the material stack you're fixing through, leaving enough protrusion beyond the joint for a nut (and washer, where one is used) to be fitted and fully engaged. Tighten with a spanner, socket or ratchet to a firm, positive torque rather than by hand, to draw the joint up snugly and give a secure, vibration-resistant fix.

Common Questions

What does DIN 933 / ISO 4017 mean?
These are the recognised standards for fully threaded hexagon head bolts: the ISO metric thread runs the full length of the shank, right up to the head.

Which spanner size do I need?
Match the spanner or socket to the across-flats (s) size: an M6 bolt takes 10mm, an M8 bolt 13mm and an M12 bolt 19mm. The size for every diameter is in the Specification table.

Which lengths are available?
Lengths run from 10mm to 100mm, depending on diameter; for example, M12 bolts come in 16mm to 100mm lengths, including M12 x 30mm and M12 x 50mm. Every length is listed in the Specification table.

Can they be used outdoors?
Yes. A2 stainless steel resists rust and keeps its appearance through years of outdoor exposure, for fencing, gates, garden furniture and outdoor structures.

What pack sizes are available?
Every size comes in a pack of 10 or 50 bolts.

Specifications
MaterialA2 Stainless Steel
SizeM3-M14
Weight0.00075 kg
All 168 options and prices
Pack QuantityBolt SizePrice inc. VATex. VATPer piece
10 pcsM3 x 10mm£4.48£3.73-
50 pcsM3 x 10mm£5.38£4.48-
10 pcsM3 x 16mm£4.78£3.98-
50 pcsM3 x 16mm£5.48£4.57-
10 pcsM3 x 20mm£4.78£3.98-
50 pcsM3 x 20mm£5.48£4.57-Sold out
10 pcsM3 x 25mm£4.88£4.07-
50 pcsM3 x 25mm£5.78£4.81-
10 pcsM3 x 30mm£4.88£4.07-
50 pcsM3 x 30mm£5.98£4.99-
10 pcsM3 x 40mm£4.98£4.15-
50 pcsM3 x 40mm£7.38£6.15-
10 pcsM4 x 10mm£4.78£3.98-
50 pcsM4 x 10mm£5.58£4.65-
10 pcsM4 x 16mm£4.88£4.07-
50 pcsM4 x 16mm£6.58£5.48-
10 pcsM4 x 20mm£4.88£4.07-
50 pcsM4 x 20mm£6.68£5.57-
10 pcsM4 x 25mm£4.68£3.90-
50 pcsM4 x 25mm£6.98£5.81-
10 pcsM4 x 30mm£4.98£4.15-Sold out
50 pcsM4 x 30mm£6.98£5.81-Sold out
10 pcsM4 x 40mm£4.98£4.15-
50 pcsM4 x 40mm£7.58£6.31-
10 pcsM4 x 50mm£5.18£4.31-Sold out
50 pcsM4 x 50mm£7.98£6.65-Sold out
10 pcsM4 x 60mm£5.28£4.40-
50 pcsM4 x 60mm£8.48£7.07-
10 pcsM5 x 10mm£4.78£3.98-
50 pcsM5 x 10mm£6.28£5.23-
10 pcsM5 x 16mm£4.78£3.98-
50 pcsM5 x 16mm£6.38£5.31-
10 pcsM5 x 20mm£4.58£3.81-
50 pcsM5 x 20mm£6.48£5.40-
10 pcsM5 x 25mm£4.88£4.07-
50 pcsM5 x 25mm£6.58£5.48-
10 pcsM5 x 35mm£4.98£4.15-
50 pcsM5 x 35mm£6.98£5.81-Sold out
10 pcsM5 x 40mm£4.98£4.15-
50 pcsM5 x 40mm£7.18£5.98-Sold out
10 pcsM5 x 45mm£4.98£4.15-
50 pcsM5 x 45mm£7.28£6.07-
10 pcsM5 x 50mm£4.98£4.15-
50 pcsM5 x 50mm£7.48£6.23-
10 pcsM5 x 55mm£5.18£4.31-
50 pcsM5 x 55mm£8.18£6.81-
10 pcsM5 x 60mm£5.88£4.90-
50 pcsM5 x 60mm£7.98£6.65-Sold out
10 pcsM5 x 70mm£5.98£4.99-
50 pcsM5 x 70mm£8.58£7.15-
10 pcsM6 x 10mm£4.88£4.07-
50 pcsM6 x 10mm£6.58£5.48-
10 pcsM6 x 16mm£4.68£3.90-
50 pcsM6 x 16mm£6.78£5.65-
10 pcsM6 x 25mm£4.98£4.15-
50 pcsM6 x 25mm£6.98£5.81-Sold out
10 pcsM6 x 35mm£4.98£4.15-
50 pcsM6 x 35mm£7.48£6.23-
10 pcsM6 x 40mm£5.88£4.90-
50 pcsM6 x 40mm£7.68£6.40-
10 pcsM6 x 45mm£5.88£4.90-
50 pcsM6 x 45mm£7.98£6.65-Sold out
10 pcsM6 x 50mm£5.98£4.99-
50 pcsM6 x 50mm£8.18£6.81-Sold out
10 pcsM6 x 55mm£5.98£4.99-
50 pcsM6 x 55mm£8.38£6.98-
10 pcsM6 x 60mm£5.98£4.99-
50 pcsM6 x 60mm£8.58£7.15-
10 pcsM6 x 65mm£5.98£4.99-
50 pcsM6 x 65mm£8.88£7.40-
10 pcsM6 x 70mm£6.18£5.15-
50 pcsM6 x 70mm£10.78£8.98-
10 pcsM6 x 75mm£6.28£5.23-
50 pcsM6 x 75mm£11.38£9.48-
10 pcsM6 x 80mm£6.28£5.23-
50 pcsM6 x 80mm£11.38£9.48-
10 pcsM6 x 90mm£6.38£5.31-
50 pcsM6 x 90mm£12.68£10.57-
10 pcsM6 x 20mm£4.98£4.15-
50 pcsM6 x 20mm£6.88£5.73-
10 pcsM6 x 100mm£6.48£5.40-
50 pcsM6 x 100mm£13.38£11.15-
10 pcsM8 x 10mm£5.58£4.65-
50 pcsM8 x 10mm£7.88£6.57-
10 pcsM8 x 16mm£5.98£4.99-
50 pcsM8 x 16mm£7.98£6.65-Sold out
10 pcsM8 x 20mm£5.98£4.99-
50 pcsM8 x 20mm£8.28£6.90-
10 pcsM8 x 25mm£5.98£4.99-
50 pcsM8 x 25mm£8.68£7.23-Sold out
10 pcsM8 x 30mm£5.98£4.99-
50 pcsM8 x 30mm£10.58£8.81-
10 pcsM8 x 35mm£6.18£5.15-
50 pcsM8 x 35mm£10.98£9.15-
10 pcsM8 x 40mm£6.28£5.23-
50 pcsM8 x 40mm£11.38£9.48-Sold out
10 pcsM8 x 45mm£6.38£5.31-
50 pcsM8 x 45mm£12.48£10.40-Sold out
10 pcsM8 x 50mm£6.38£5.31-
50 pcsM8 x 50mm£12.88£10.73-
10 pcsM8 x 60mm£6.58£5.48-
50 pcsM8 x 60mm£13.68£11.40-Sold out
10 pcsM8 x 65mm£6.68£5.57-
50 pcsM8 x 65mm£13.98£11.65-Sold out
10 pcsM8 x 70mm£6.78£5.65-
50 pcsM8 x 70mm£14.48£12.07-Sold out
10 pcsM8 x 75mm£6.78£5.65-
50 pcsM8 x 75mm£14.88£12.40-Sold out
10 pcsM8 x 80mm£6.88£5.73-
50 pcsM8 x 80mm£15.28£12.73-
10 pcsM8 x 90mm£6.98£5.81-
50 pcsM8 x 90mm£15.98£13.31-Sold out
10 pcsM8 x 100mm£7.48£6.23-
50 pcsM8 x 100mm£18.18£15.15-Sold out
10 pcsM10 x 12mm£6.98£5.81-
50 pcsM10 x 12mm£15.58£12.98-
10 pcsM10 x 16mm£6.48£5.40-
50 pcsM10 x 16mm£12.98£10.81-Sold out
10 pcsM10 x 20mm£6.48£5.40-Sold out
50 pcsM10 x 20mm£12.98£10.81-Sold out
10 pcsM10 x 25mm£6.58£5.48-
50 pcsM10 x 25mm£13.78£11.48-Sold out
10 pcsM10 x 30mm£6.78£5.65-
50 pcsM10 x 30mm£14.68£12.23-Sold out
10 pcsM10 x 40mm£6.98£5.81-Sold out
50 pcsM10 x 40mm£15.58£12.98-Sold out
10 pcsM10 x 50mm£7.18£5.98-
50 pcsM10 x 50mm£16.48£13.73-Sold out
10 pcsM10 x 60mm£7.68£6.40-
50 pcsM10 x 60mm£18.98£15.81-Sold out
10 pcsM10 x 70mm£7.68£6.40-
50 pcsM10 x 70mm£18.98£15.81-Sold out
10 pcsM10 x 80mm£7.98£6.65-
50 pcsM10 x 80mm£20.78£17.31-Sold out
10 pcsM10 x 90mm£8.18£6.81-
50 pcsM10 x 90mm£21.68£18.07-Sold out
10 pcsM10 x 100mm£8.38£6.98-
50 pcsM10 x 100mm£22.58£18.81-Sold out
10 pcsM12 x 16mm£7.18£5.98-Sold out
50 pcsM12 x 16mm£16.48£13.73-Sold out
10 pcsM12 x 20mm£7.18£5.98-Sold out
50 pcsM12 x 20mm£16.48£13.73-Sold out
10 pcsM12 x 30mm£7.28£6.07-
50 pcsM12 x 30mm£17.28£14.40-
10 pcsM12 x 40mm£7.68£6.40-Sold out
50 pcsM12 x 40mm£18.98£15.81-Sold out
10 pcsM12 x 50mm£7.98£6.65-Sold out
50 pcsM12 x 50mm£20.78£17.31-Sold out
10 pcsM12 x 60mm£8.38£6.98-
50 pcsM12 x 60mm£22.48£18.73-Sold out
10 pcsM12 x 70mm£8.68£7.23-Sold out
50 pcsM12 x 70mm£24.28£20.23-Sold out
10 pcsM12 x 80mm£10.68£8.90-
50 pcsM12 x 80mm£25.98£21.65-Sold out
10 pcsM12 x 90mm£10.98£9.15-Sold out
50 pcsM12 x 90mm£27.78£23.15-Sold out
10 pcsM12 x 100mm£11.38£9.48-Sold out
50 pcsM12 x 100mm£29.48£24.57-Sold out
10 pcsM14 x 25mm£8.38£6.98-
50 pcsM14 x 25mm£22.48£18.73-Sold out
10 pcsM14 x 40mm£8.98£7.48-Sold out
50 pcsM14 x 40mm£25.98£21.65-Sold out
10 pcsM14 x 60mm£12.58£10.48-Sold out
50 pcsM14 x 60mm£31.98£26.65-Sold out
10 pcsM14 x 70mm£12.98£10.81-
50 pcsM14 x 70mm£34.68£28.90-Sold out
10 pcsM14 x 100mm£14.48£12.07-
50 pcsM14 x 100mm£41.68£34.73-Sold out
Delivery and returns

Free standard UK delivery, or Next Day Delivery for £0.99 (order by 2pm).

Order before 2pm Mon–Fri for same-day dispatch

60-day returns

Shipping policy · Refund policy

Where to use it.

Fencing, gates and balustrades
Fencing, gates and balustrades
Garden and decking furniture assembly
Garden and decking furniture assembly
Bracket and frame fixing
Bracket and frame fixing
General engineering and DIY projects
General engineering and DIY projects