1/4-20 x 1 1/4 Flat Head Floorboard Thread Cutting Screws, Type …

评级: 来自 1 个源的 1,046 条评论

评论

选定评论,共 1046 条评论

# 1 drill size ( .228 ) in my opinion is best for 3/16 steel or thicker. 7/32 drill size ( .218 ) works best on1/8 steel or less.阅读完整评论

www.amazon.com