Bolt 5/16" UNF x 1 1/4"

Suits:

External Gearbox: 4 Speed Offset Gear - 100-4, 100-6 & 3000 (BN2-BT7) (1955-62)
External Gearbox: 4 Speed Centre Gear Change - 3000 (BN7 & BJ8) (1961-68)
Generator Mountings - 100-6 & 3000 (1956-68)
External Engine - 100-6 & 3000 (1956-68)
Rear Subframe - Mini (1959-00)
External Engine - Mini (1959-00)
Handbrake - MGA (1955-62)
Internal Gearbox - MGA (1955-62)
External Engine - MGA Twin Cam (1958-60)
External Gearbox: 3 Synchro Non-Overdrive - MGB & MGB GT (1962-67)
External Gearbox: 3 Synchro Overdrive - MGB & MGB GT (1962-67)
Cooling System: Mechanical Fan - MGB & MGB GT (1962-76)
Oil System: 5 Main Bearing (18GB-18V) - MGB & MGB GT (1964-80)
Exhaust System - MGB & MGB GT (1962-80)
Propshaft - Minor (1951-71)
Propshaft & Rear Axle - Sprite I-III & Midget I-II (1958-66)
Propshaft & Rear Axle - Sprite IV & Midget III-1500 (1967-79)
Water Pump, Fan & Fittings - Midget 1500 (1974-79)
Engine & Gearbox Mountings - Sprite IV & Midget III-1500 (1958-79)
Water Pump, Fan & Fittings - Spitfire MkI-1500 (1962-80)
Alternator, Dynamo & Starter Motor - Spitfire MkI-1500 (1962-80)
Exhaust System - Spitfire MkI-III (1962-70)
Exhaust System - Spitfire MkIV-1500 (1970-80)
Steering Rack - Spitfire MkI-1500 (1962-80)
Radiator - TR2-4A (1953-67)
Dynamo - TR2-4A (1953-67)
Cooling System - TR5-6 (1967-76)
Internal Engine - TR5-6 (1967-76)
Internal Engine - TR7 (1974-81)