Hillman 5/16 In. Alloy Steel Yellow Dichromate Split Lock Washer (100 Ct.) Brand_C.H. Hanson square underside of the head

square underside of the head is self-locking to eliminate spinning & the need for a driving tool

advanced exterior filler

the grate will ensure many years of reliable use and a great grilling experience

concealed mounting

2" stud center marking simplify framing jobs

Hillman 5/16 In. Alloy Steel Yellow Dichromate Split Lock Washer (100 Ct.) Brand_C.H. Hanson square underside of the headHardened, yellow dichromate split lock washer prevents nuts and bolts from turning, slipping, and coming loose because of vibration and torque. Grade 8. These fasteners contain split ends that help 'lock' into the mating material, thus providing a locking feature when tightened beneath a nut.