3 8 allen key
3 8 allen key for sale on Ireland's largest auction and classifieds sites
Draper metric hexagon - metric, allen - £32.54
Bookmark - Free postage - New and Used
Bookmark - Free postage - New and Used
3 8 unc button - 1/4", 5/16" - £2.99
Unc button head • Socket screws stainless • Thread pattern manufactured - Free postage - New and Used
Unc button head • Socket screws stainless • Thread pattern manufactured - Free postage - New and Used
3mm stainless - m3, a2 - £7.78
3mm stainless countersunk • Csk socket screw • Allen key bolts - Free postage - New and Used
3mm stainless countersunk • Csk socket screw • Allen key bolts - Free postage - New and Used
Allen key hex bit - key, set - £25.49
Higher torque your • Steel hex bits • Socket have right - Free postage - New and Used
Higher torque your • Steel hex bits • Socket have right - Free postage - New and Used
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16 3 8 imperial - 5/16", 3/8" - £175.27
Screws nuts • Unf socket cap • Stainless steel further - Free postage - New and Used
Screws nuts • Unf socket cap • Stainless steel further - Free postage - New and Used
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48 listings · from £1 · avg £19.32
⚠️ These listings were last updated more than 101 days ago.
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Browse 48 3 8 allen key listings currently in our index. Prices range from £1 to £175.27, with an average of £19.32. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 3 8 allen key →
Metric allen keys hexagon key - metric, - £30.19
0.9mm 1.27mm 1.5mm • 2mm 2.5mm 3mm • 4mm 5mm 6mm - Free postage - New and Used
0.9mm 1.27mm 1.5mm • 2mm 2.5mm 3mm • 4mm 5mm 6mm - Free postage - New and Used
30pcs allen wrench hex key - hex, - £12.99
Wrench tolerance range • 0.3mm within 5mm • 0.5mm above tacklife - Free postage - New and Used
Wrench tolerance range • 0.3mm within 5mm • 0.5mm above tacklife - Free postage - New and Used
Male hex bit - bit, sockets - £10.00
Manufactured from chrome • Vanadium steel extra • Hard reach areas - Free postage - New and Used
Manufactured from chrome • Vanadium steel extra • Hard reach areas - Free postage - New and Used
Draper extra long - 10, allen - £13.07
Ball type hexagon • Key used angle • From screwhead recess - Free postage - New and Used
Ball type hexagon • Key used angle • From screwhead recess - Free postage - New and Used
Bgs allen key - bgs, - £4.25
Bgs pro range • Internal hex drive • Allen key 2576 - Free postage - New and Used
Bgs pro range • Internal hex drive • Allen key 2576 - Free postage - New and Used
M8 socket button - m3, - £39.05
Choose from thread • Sizes button head • Allen screws stainless - Free postage - New and Used
Choose from thread • Sizes button head • Allen screws stainless - Free postage - New and Used
Pro 8pc long - us, - £11.89
Drive will fit • Ratchet bar etc • 140mm total length - Free postage - New and Used
Drive will fit • Ratchet bar etc • 140mm total length - Free postage - New and Used
Pro 7pc dr - us, - £9.27
Pro industrial extendable • Ratchet 630mm 1000mm • 4168 sizes 10mm - Free postage - New and Used
Pro industrial extendable • Ratchet 630mm 1000mm • 4168 sizes 10mm - Free postage - New and Used
Male hex bit - hex, extra - £9.99
Extra long 110mm • Hard reach areas • That conventional bits - Free postage - New and Used
Extra long 110mm • Hard reach areas • That conventional bits - Free postage - New and Used
Allen alan allan hex - af, allan/ - £11.64
High quality allen • Hex keys drive • Bar etc includes - Free postage - New and Used
High quality allen • Hex keys drive • Bar etc includes - Free postage - New and Used
Metric short arm allen key - short, - £9.99
M1.5 m2.5 m10 • Choose from drop • Down list quantity - Free postage - New and Used
M1.5 m2.5 m10 • Choose from drop • Down list quantity - Free postage - New and Used
Hex key allen - key, and - £1.00
Hex allen keys • 12mm black 140 • Long 150 6mm - Free postage - New and Used
Hex allen keys • 12mm black 140 • Long 150 6mm - Free postage - New and Used
Bondhus allen key handle - key, t-handle - £10.37
This handle hex • Driver from bondhus • Perfect any project - Free postage - New and Used
This handle hex • Driver from bondhus • Perfect any project - Free postage - New and Used
Allen key torx - 40, - £9.39
Type torx star • Bits spline pieces • Scope application hex - Free postage - New and Used
Type torx star • Bits spline pieces • Scope application hex - Free postage - New and Used
Pro impact hex bit sockets - us, - £9.00
Sizes h10 steel • Bit piece drive • Socket set supplied - Free postage - New and Used
Sizes h10 steel • Bit piece drive • Socket set supplied - Free postage - New and Used
Hex bit socket - socket, set - £8.90
Berlin tools piece • Drive hex bit • Socket set h12 - Free postage - New and Used
Berlin tools piece • Drive hex bit • Socket set h12 - Free postage - New and Used
Bluespot impact allen key hex - impact, - £11.49
Bluespot 5pc jigsaw • Blade set shank • Clean fast cut - Free postage - New and Used
Bluespot 5pc jigsaw • Blade set shank • Clean fast cut - Free postage - New and Used
Neilsen ball end extra long - neilsen, - £10.89
Ball end gives • Greater access confined • Bits allow fixings - Free postage - New and Used
Ball end gives • Greater access confined • Bits allow fixings - Free postage - New and Used
Imperial hex allen key expert - imperial, - £4.99
Repellat cum officiis • Aspernatur numquam minus • Quaerat ergonomic design - Free postage - New and Used
Repellat cum officiis • Aspernatur numquam minus • Quaerat ergonomic design - Free postage - New and Used
Hex bit socket - 3/8", drive - £8.95
Toolzone piece drive • Hex bit socket • Set h12 sizes - Free postage - New and Used
Toolzone piece drive • Hex bit socket • Set h12 sizes - Free postage - New and Used
Bgs allen key sae - bgs, - £3.75
Allen key internal • Bgs pro range • Hex sae imperial - Free postage - New and Used
Allen key internal • Bgs pro range • Hex sae imperial - Free postage - New and Used
Jumbo hex keys allen - jumbo, - £19.95
Bluespot 12pcs jumbo • Hex keys imperial • Sizes - Free postage - New and Used
Bluespot 12pcs jumbo • Hex keys imperial • Sizes - Free postage - New and Used
Allen hex key loose - allen, - £1.19
Shorts allen keys • Sizes add your • Favourites list - Free postage - New and Used
Shorts allen keys • Sizes add your • Favourites list - Free postage - New and Used
1 2 unc cap - unc, - £6.27
Unc socket cap • Screws stainless steel • Manufactured from grade - Free postage - New and Used
Unc socket cap • Screws stainless steel • Manufactured from grade - Free postage - New and Used
M8 m10 cap - m5, head - £9.90
Mobile description summary - Free postage - New and Used
Mobile description summary - Free postage - New and Used
Pro 7pc dr long - pro, ball - £9.29
Sizes 10mm supplied • Blow moulded storage • Case cylinder head - Free postage - New and Used
Sizes 10mm supplied • Blow moulded storage • Case cylinder head - Free postage - New and Used
Unc a2 stainless - unc, - £6.38
Stainless steel manufactured • Maximum corrosion resistance • Threads are unified - Free postage - New and Used
Stainless steel manufactured • Maximum corrosion resistance • Threads are unified - Free postage - New and Used
Franklin 11mm hex key bit - -, - £8.99
11mm hex key • Bit socket all • Sockets supplied are - Free postage - New and Used
11mm hex key • Bit socket all • Sockets supplied are - Free postage - New and Used
Winholder impact hex bit - winholder, - £11.47
Sizes h2.5 h5.5 • H10 enhance your • Oolkit 11pc3 drive - Free postage - New and Used
Sizes h2.5 h5.5 • H10 enhance your • Oolkit 11pc3 drive - Free postage - New and Used
Npt hex allen key - 3/8, - £3.49
Male blanking plug • Hex allen key • Blocking female npt - Free postage - New and Used
Male blanking plug • Hex allen key • Blocking female npt - Free postage - New and Used
Sealey piece hex allen - sealey, - £22.85
Sealey piece hex • Allen key socket • Bit set 4mm - Free postage - New and Used
Sealey piece hex • Allen key socket • Bit set 4mm - Free postage - New and Used
Bgs allen key sae imperial - bgs, - £4.25
Allen key internal • Bgs pro range • Hex sae imperial - Free postage - New and Used
Allen key internal • Bgs pro range • Hex sae imperial - Free postage - New and Used
1 2 unf - 5/16", - £108.07
Unf socket cap • Allen key • Bolts are uncoated - Free postage - New and Used
Unf socket cap • Allen key • Bolts are uncoated - Free postage - New and Used
Imperial sae allen allan - imperial, - £12.23
Drive imperial sae • Allen key sockets • Will fit any - Free postage - New and Used
Drive imperial sae • Allen key sockets • Will fit any - Free postage - New and Used
8in drive extra - drive, impact - £15.83
Extra long impacted • Hex allen key • Ideal use high - Free postage - New and Used
Extra long impacted • Hex allen key • Ideal use high - Free postage - New and Used
Pro tools 30pc - pro, metric - £10.79
Pro tools ratchet • Strap tie down • 4.6m 25mm load - Free postage - New and Used
Pro tools ratchet • Strap tie down • 4.6m 25mm load - Free postage - New and Used
Pro hex bit - bit, set - £10.95
Pro tools hex • Socket set drive • H10 allen key - Free postage - New and Used
Pro tools hex • Socket set drive • H10 allen key - Free postage - New and Used
Hex bit socket set - hex, drive - £8.90
Toolzone piece drive • Hex bit socket • Set h12 sizes - Free postage - New and Used
Toolzone piece drive • Hex bit socket • Set h12 sizes - Free postage - New and Used
Unc cap screws allen key - screws, - £107.91
Allen key • Unc cap head • Socket screws thread - Free postage - New and Used
Allen key • Unc cap head • Socket screws thread - Free postage - New and Used
Unc cap screws stainless - unc, a2 - £42.17
Unc socket cap • Screws stainless stee • Threads pattern unified - Free postage - New and Used
Unc socket cap • Screws stainless stee • Threads pattern unified - Free postage - New and Used
3mm 14mm all - 3mm, - £5.99
Professional quality point • Select socket quantity • You require 50mm - Free postage - New and Used
Professional quality point • Select socket quantity • You require 50mm - Free postage - New and Used
Winholder impact hex bit - hex, - £11.47
Impact hex bit • Sockets set drive • H10 allen key - Free postage - New and Used
Impact hex bit • Sockets set drive • H10 allen key - Free postage - New and Used
Shoulder bolts stainless - bolts, - £3.98
M10 material stainless • Steel 304 type • Socket shoulder bolts - Free postage - New and Used
M10 material stainless • Steel 304 type • Socket shoulder bolts - Free postage - New and Used
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Everything you need to know about 3 8 allen key
Whether you are looking for a brand-new or second-hand 3 8 allen key, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £1, while premium listings can reach £175.27 — giving you a wide budget spread to work with. The average price of £19.32 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.