5/16" x 24 UNF bleedscrew. Hex head on the bleedscrew for easy installation or removal by a spanner or a deep socket. Thread size - 5/16" x 24 UNF. Suitable to fit on 6mm pipes (this is the pipe for bleeding the brakes / above the hex).
3/8” x 24 UNF Thread Repair Cutter Kit Helicoil Set for Damaged Threads 14pc
Steel Male Brake Pipe Union Fittings 3/8 x 24 UNF TTE for 3/16" Brake Pipe 10pc
10pc Steel Male Brake Pipe Union Fittings 3/8" x 24 UNF for 3/16" Volvo Brakes
3/8 X 24 UNF HSS TAPS TAPER & SECOND & PLUG - BRITISH APEX THREADING TOOL
5/16 X 24 UNF HSS TAPER TAP - BRITISH APEX BRAND THREADING TOOL