Different Screws for different purpose. Chose the best screw for the job.
Brief description for the Different types of Screws:
Brief description for the Different types of Screws:
- Wood Screws - Screws with a smooth shank and tapered point for use in wood. Abbreviated WS.
- Machine Screws - Screws with threads for use with a nut or tapped hole. Abbreviated MS.
- Thread Cutting Machine Screws - Machine screws with thread cutting (self tapping) point.
- Sheet Metal Screws - Fully threaded screws with a point for use in sheet metal. Abbreviated SMS.
- Self Drilling SMS - A sheet metal screw with self drilling point.
- Hex Bolts - Bolts with a hexagonal head with threads for use with a nut or tapped hole. Abbreviated HHMB or HXBT.
- Carriage Bolts - Bolts with a smooth rounded head that has a small square section underneath.
- Lag Bolts - Bolts with wood thread and pointed tip. Abbreviated Lag.
- Socket Screws - Socket Screws also know as Allen Head are fastened with a hex Allen wrench.
- Set Screws - Machine Screws with no head for screwing all the way into threaded holes.
- Eye Bolts - A bolt with a circular ring on the head end. Used for attaching a rope or chain.
- Eye Lags - Similar to an eye bolt but with wood treads instead of machine thread.
- J-Bolts - J Shaped bolts are used for tie-downs or as an open eye bolt.
- U-Bolts - Bolts in U shape for attaching to pipe or other round surfaces. Also available with a square bend.
- Shoulder bolts - Shoulder bolts (also known as stripper bolts) are used to create a pivot point.
- Elevator Bolts - Elevator Bolts are often used in conveyor systems. They have a large, flat head.
- Sex Bolts - Sex bolts (a.k.a barrel nuts or Chicago bolts) have a female thread and are used for through bolting application where a head is desired on both sides of the joint.
- Mating Screw - Matching screw have a shoulder that matches the diameter of the sex bolts they are used with.
- Hanger Bolts - Hanger Bolts have wood thread on one end and machine thread on the other end.