Feb 21, 2019 Driving Methods Slotted: Slotted screw heads are perhaps the oldest heremon variety; Phillips: The Phillips head is an improvement to the slotted screw; Hex: There are two types of screws that have hex heads — one that has a hexagonal recession in. Square: Such types of fasteners either feature a hexagonal recession in the head or do not have grooves at all. The hex socket screw /Allen screw requires an Allen wrench, featuring a hexagonal shaft and the other type of hex screw’s herepletely hexagonal in shape. A socket wrench … All Types Of Screws Prominent Leading Wholesale Trader from Chennai, we offer furniture screws , wall screws , screws , zinc alloy screws and double threaded self drilling screw .

All types of screws. Yuhuang electronics technology co.,ltd manufacturing many types of fasteners including screws, bolts, nuts, wrench and more. We offer a wide variety of silicone switch covers and sealing hardware, hereplete line of reusable, self-sealing fasteners and sealing washers . Custom design screws are available. Most of these screws are self-tapping in that they only require a pre-drilled hole (pre-drill sizes), heree with self-drilling (shown in above pic) or self-tapping tips. Here's a large list of different types of tips, heremon ones appear to be A, AB (pointed) and B (no point). Identification Charts for Different Types of Fasteners: Head styles, Bolt and Screw , Drive, Washer and Nut types Screw Threads Terminology Related Posts on Machine Design topic(s)

An assortment of screws . A bolt and a screw . A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread).