Stainless Steel Armoured Brass Padlock Marine Products these are 3/8 unc into

these are  3/8 unc into head reduced to 5/16  manifold studs while port alignment with cylinder heads is the same the clearance for a larger stud and nut makes them difficult to fit

• 2 x stainless steel locking nuts

Sierra Water Pump Kit - Mercury/ Mariner - S18-3570

- Get a box of 10 high-quality BPR6EFS-13 spark plugs

4 & 5mm diameter wire

Stainless Steel Armoured Brass Padlock Marine Products these are 3/8 unc intoSecure your belongings with confidence using this 63mm Stainless Steel Armoured Brass Padlock. Ideal for commercial and industrial use, this padlock offers high security and tamper proof protection. With its unique design and chrome plated hardened steel pin, this brass padlock is both strong and durable. Comes with 3 identical keys for your convenience.