countersinking

• Cross recessed countersunk head thread forming screws
  十字槽沉头自攻锁紧螺钉
• Countersinks , 90 , with parallel shanks and solid pilots
  带整体导柱的直柄90锥面锪钻
• 90 countersunk head ladder bolts with mj thread , slotted
  Mj螺纹一字槽90沉头阶梯螺栓
• Countersunk raised head screws common head style with cross recess
  十字槽半沉头螺钉
• 90 degrees countersunk head rivets in aluminium alloys
  铝合金制90埋头铆钉
• Detachable pilots for use with counterbores and countersinks
  锪钻用可换导柱
• Tool inspection methods part 10 : countersinks
  刀具产品检测方法.第10部分:锪钻
• 90 countersinks with parallel shank and solid pilot
  直柄固定导杆的90沉头钻
• Cross recessed countersunk head self - drilling tapping screws
  十字槽沉头自钻自攻螺钉
• Cross recessed raised countersunk head tapping screws
  十字槽半沉头椭圆头自攻螺钉