818312 Volvo.Penta Valve seat, valve seat

6-32 x 1/2" Machine Screws/Unslotted/Hex Head / 18-8 Stainless Steel (Carton: 5,000 pcs)
Newport Fasteners Hex Unslotted || Machine Screw || Manufactured to ASME B18.6.3 dimensions || Fully Threaded || 18-8 Stainless Steel

Universal 818312 Phillips Flat Head Brass Wood Screws, 8 x 1-1/2" (Pack of 100)
A thread forming screw with a gimlet point, and coarse threads which produce a mating thread into wood || The countersunk head has a flat top, and a head angle of approximately 82 degrees || Phillips drive provides good control in driving || Brass is an alloy of copper and zinc that resists rust in moderate atmospheric conditions || Not high in strength but durable