Useful back to back fixing bolts for use on on door handles and other ironmongery where a very strong fixing to the door is required. These male/female bolts have an M4 thread and have an overall 60mm fixing capacity.
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60Pcs Wire Screw Sleeve Thread Repair Kit, M3 M4 M5 M6 M8 M10 M12 Stainless Steel Wire Inserts Screws Sleeve Assortment Kit
Aliexpress UK
M4 High Security Screw Connecting Bolt with CARRIAGE, COACH SLEEVE for DOOR HANDLES, ROSES, KNOBS and ESCUTCHEONS. M3 and M4 High security Screw Connecting Bolts with sleeves for Door Handles, Roses, Knobs and Escutcheons.
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50PCS Door Handle Screws Bolt set Carbon Steel Connecting Screws and Sleeves Male to Female M4×16 Cross Sleeve M4×60 Bolts
Aliexpress UK
A common thread repair tool that can repair threaded holes. Good to use with threaded lamp pipes. Mainly used on these applications: chandeliers, pendant lamps, electronic equipment, computers, and DIY project.SpecificationMaterial: Carbon SteelExternal Thread: M12Internal Thread: M10Thread Pitch: 1mmHeight: 12mm / 0.47 inchPacking List: 10 x Reducing NutAdvantageThe product is made of carbon steel material, providing good durability and stability. Also, the zinc coat has good rust resistance, and it can prolong product's service life.Convenient to use, it can convert two different thread.InstructionAll thread design body is very easy to use, just thread them into a nut or thread pipe.NOTE: Please confirm the thread size.
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Thread Repair Insert Kits Wire Braces Bushing Screws Sleeve Threaded Sheath M3 M4 M5 M6 M8 M10 M12 Silver Stainless Steel 60pcs
Aliexpress UK
Mirror Screws No. 8 Countersunk Slotted Head In Many Sizes. Excellent Finish. Easy and E fficient. Atish Enterprises LTD Specialises in Hardware Distribution.
eBay
M2-M4 ~ M20-M30 303 Stainless Steel Thread Repair Insert Self-tapping Bushing with Plug Screw Sleeve Nuts
Aliexpress UK
The product is made of 304 stainless steel, which has good corrosion and oxidation resistance heat resistance, high strength and high toughness. We Sincerely Hope That You Can Receive the Goods As Soon As Possible.
eBay
M2x M4 ~ M20x M30 Thread Repair Insert Self-tapping Bushing with Plug Leg Screw Sleeve Nuts 303 Stainless Steel
Aliexpress UK
Choose between M3 (3mm) or M4 (4mm) screws. M4 Version (snap off screw). Upgrade your door hardware with our heavy-duty M3/M4 connecting screw kits, designed to solve loose handle problems on hollow core and solid doors.
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60pcs Stainless Steel Thread Repair Kit M3 M4 M5 M6 M8 M10 M12 Thread Repair insert Wire Screw Sleeve Wire insert thread
Aliexpress UK
A common thread repair tool that can repair threaded holes. Good to use with threaded lamp pipes. Mainly used on these applications: chandeliers, pendant lamps, electronic equipment, computers, and DIY project.SpecificationMaterial: Carbon SteelExternal Thread: M8Internal Thread: M6Thread Pitch: 1mmHeight: 10mm / 0.39 inchPacking List: 10 x Reducing NutAdvantageThe product is made of carbon steel material, providing good durability and stability. Also, the zinc coat has good rust resistance, and it can prolong product's service life.Convenient to use, it can convert two different thread.InstructionAll thread design body is very easy to use, just thread them into a nut or thread pipe.NOTE: Please confirm the thread size.
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5/50PCS Red Pointed Expansion Rivets Hollow Wall Anchor Screw Sleeve Cross Galvanized Steel Anchoring Fastener Woodwork Bolt Set
Aliexpress UK
A common thread repair tool that can repair threaded holes. Good to use with threaded lamp pipes. Mainly used on these applications: chandeliers, pendant lamps, electronic equipment, computers, and DIY project.SpecificationMaterial: Carbon SteelExternal Thread: M14Internal Thread: M10Thread Pitch: 1mmHeight: 15mm / 0.59 inchPacking List: 10 x Reducing NutAdvantageThe product is made of carbon steel material, providing good durability and stability. Also, the zinc coat has good rust resistance, and it can prolong product's service life.Convenient to use, it can convert two different thread.InstructionAll thread design body is very easy to use, just thread them into a nut or thread pipe.NOTE: Please confirm the thread size.
eBay
2-50pcs M2 M2.5 M3 M4 M5 M6 M8 M10 M12-M24 304 Stainless Steel Helicoil Thread Repair Insert Coiled Wire Helical Screw Sleeve
Aliexpress UK