Bolt - Socket Head - Stainless Steel - A2 - 4mm x 8mm to 25mm - Individual

These polished stainless steel 4mm socket head Allen bolts are clean replacement hardware options for vintage Japanese motorcycles / restoration projects / custom builds / and general metric hardware repair. Made from A2 stainless steel / these bolts offer strong corrosion resistance while providing a smooth-headed polished finish for visible mounting points and finished assemblies.

Each socket head bolt features a 4mm diameter with a 0.70mm thread pitch and is available in multiple length options. The socket head design uses an internal hex drive and installs with a 3mm Allen key or 3mm hex key. These bolts are a practical upgrade for replacing rusty / stripped / damaged / or chewed original hardware where a clean stainless Allen bolt is preferred.

These 4mm x 0.70mm metric socket head Allen bolts are commonly used for small hardware applications on vintage Honda / Yamaha / Kawasaki / Suzuki / and other metric motorcycles. Possible uses include side covers / trim pieces / small brackets / electrical component mounting / switch hardware / gauge hardware / light-duty covers / control hardware / accessory mounts / small fender mounts / and custom motorcycle hardware replacement.

This 4mm socket head bolt group includes the following selectable lengths:

• 4mm x 8mm socket head Allen bolt
• 4mm x 10mm socket head Allen bolt
• 4mm x 12mm socket head Allen bolt
• 4mm x 14mm socket head Allen bolt
• 4mm x 16mm socket head Allen bolt
• 4mm x 18mm socket head Allen bolt
• 4mm x 20mm socket head Allen bolt
• 4mm x 25mm socket head Allen bolt

Specifications include 4mm thread diameter / 0.70mm thread pitch / 7mm head diameter / 4mm head height / and 3mm hex key size. These bolts are also searchable as 4mm socket head Allen bolts / M4 socket head bolts / M4 stainless Allen bolts / 4mm x 0.70mm socket head screws / M4 x 0.70mm Allen screws / smooth-headed socket bolts / polished stainless socket bolts / and metric stainless socket head hardware.

Because vintage motorcycles often use different hardware depending on model / year / mounting location / previous repairs / and hardware application / please verify your original bolt diameter / thread pitch / length / head style / hex key size / and application before ordering. These bolts are sold individually and selectable by size and quantity on this page.

Fits many applications requiring a metric 4mm diameter socket head Allen bolt with 0.70mm pitch including M4 x 8mm / M4 x 10mm / M4 x 12mm / M4 x 14mm / M4 x 16mm / M4 x 18mm / M4 x 20mm / M4 x 25mm / 4mm x 8mm / 4mm x 10mm / 4mm x 12mm / 4mm x 14mm / 4mm x 16mm / 4mm x 18mm / 4mm x 20mm / and 4mm x 25mm polished stainless socket head Allen bolts.