5/16" flat plain washer.

On late A plus engines the factory changed over to bolts rather than a stud on thermostats with a sandwich plate underneath them, all are interchangable as the cylinder head threaded hole was standard. 5/16"unc 2.5"long(2 & 9/16" to be exact (63.5mm)...

ARP Head stud kit that compromises of;

4 x Long Head Studs

7 x Short Head Studs (Disregard 2 if you're using a 9 stud application)

11 x Multipoint ARP nuts

11 x Heavy Duty Washers

4 x Rocker post studs <...

Minispares own stainless steel manifold stud and 6 sided hexagon nut kit.

For mutipopint nut kit see C-STR287

Quantity required one kit per car

This thermostat housing fitting kit, suitable for all single tier thermostat housings. Comes with new studs, nuts, washers and Klinger thermostat housing gasket

replacements in stainless steel for the heater tap elbow on the cylinder head.

Quantity required one kit per car

A simple way to dress up that engine compartment while at the same time insuring all the proper hardware is in place. A kit includes 2 each of British made chrome sleeve nuts, spacers and special cup washers, Fits all A & B series engines.

F...

Originally marketed by Minispares in the mid 70s so many companies copied them because of their smart looks and ease of fitment. These have been improved by offsetting the arms to help tighten plus stop the arm falling out when they were straight. Ki...

Manifold stud 39mm long for all A series engines up to injection which use LYR10028 which is 6mm longer at 45mm.

This kit of head studs is the best available for road and lightly tuned engines. See the C-AHT280 set for highly tuned engines.

The material spec is alloy steel heat treated to 75 tensile tons per square foot minimum and finish...

Probably the most changed stud on the mini. This is the length used on every A series engine until the introduction of the sandwich plate when longer ones were required. A stainless steel variety C-STR286 is available which we do recomme...

The intake/exhaust manifold should be secured to the head with brass nuts and these very thick washers. These washers are intended to not only spread the clamping action but the thickness allows them to absorb the heat without deforming! Takes 4 per ...