1-1/4 " x 12-1/2-Ga Steel Ring Shank Underlayment Nails 1 LB Box 764666120792

Used to attach plywood and subfloor to joists
Durable steel construction
Bright uncoated steel for use when corrosion isn't a concern
1-1/4 in. x 12-1/2-Gauge interior underlayment nail
Broad, thin head leads to reduced appearance in final product
Sharp diamond point eases driving
1 lb. box of around 322 1-1/4 in. x 12-1/2-GA underlayment nails
For laying plywood or composition underlayment over existing wood floor or floor joists
Ringed shank for greater holding power
#12-1/2 x 1-1/4 in.