DIN 7981 Cross recessed pan head tapping screws 304 self Drilling
Machine screws differ from bolts as they have a shaft with a
helical groove or thread formed on its surface. Screws, some people call it the screws [Screw] (screw), the screw
(lead screw). In fact, the screw is a general term, and screw, lead
screw are mutually different.
Machine screws have machine threads for use with a nut or in a
tapped hole. Also referred to as a stove bolt.a threaded fastener,
either used with a nut or driven into a tapped hole, usually having
a diameter of about 1/4 inch (6.4 mm) or less and a slotted head
for tightening by a screwdriver.
Screws generally called wood screws; there is kind of a pointed
front end, larger pitch, generally used for fastening wooden parts,
Machine screws have a uniform diameter the entire length of the
shaft as opposed to tapered screws which have a pointed tip.A lead screw machine screw (mechanical screw), flat head is kind of
the tip of a variety of screws, smaller pitch, uniform, generally
used for fastening metal and machine parts. They are used to fasten machine components, appliances and more.Pan heads are slightly rounded with short vertical sides. Phillips
drive is x-shaped for installation with a phillips screw driver.
Machine screws are described as numbers with the first number
designating the diameter and the second number, the number of
threads per inch. For example: 0-80, 2-56, 3-48, 4-40, 5-40, 6-32,
8-32, 10-32, and on up to size 16. In addition, machines screws are
referred to coarse or fine threads. Fine thread machine screws are
generally used when greater strength is desired.
Most Active Screw Machine Screws thread sizes are available in UNC
1.DIN 2. ISO 3. BSW 4. GB 5.JIS
|Finish options||1) Zinc .2) Nickel 3) Oxidization .4) Polish .5) Paint .6) bronze
.7) brass .|
|Fitting instructions||Quick to install|
|Material||Stainless steel,carbon steel,65#,60#|
|Delivery time||Based on quantity|
|Package||Plastic bags or paper boxes|
|Item||Stainless Steel Machine Screw - Flat Head|
1, metal curtain wall light metal compartment, and other indoor and
2, the general angle, channel, iron and other metals combined
3, car trunks, containers, shipbuilding, refrigeration equipment
and other assembly work.
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