Pins/Keys
Types of Pins
Cotter Pins
Clevis Pins
Taper Pins
Dowel Pins
Roll Pins
R Clip Pins
Hex Keys
Flat Keys
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Guide 1
What are the Pins?
A cotter pin is a simple fastener that’s used to secure a bolt in place. Consisting of a U-shaped piece of metal, it’s inserted through the hole of a bolt, after which the ends are twisted together. The cotter pin secures the bolt in place so that it’s less likely to loosen and come out.
Guide 2
Pin Material
Unless otherwise specified by the purchaser, cotter pins shall be made of low-carbon steel.
When so specified by the purchaser, pins may also be made from material such as ASTM A493, Types 302 (UNS S30200), 304(UNS S30400), and 316(UNS S31600) corrosion-resistant steel; or other material as agreed upon between manufacturer and purchaser.
Cotter pins are manufactured from approximately half-round wire and it is desirable that the flat side of the wire have a small degree of rounding at the edges rather than sharp corners.
Guide 3
Pin Surface Treatment
Unless otherwise specified by the purchaser, cotter pins shall be supplied with a plain (as processed) finish, not plated or coated. Other finishes, where required, shall be subject to agreement between the manufacturer and purchaser.
Guide 4
Designation of the Pin
INCH FASTENERS
Pins shall be designated by the following data in the sequence shown:
(a) product name
(b) nominal size (fractional or decimal equivalent)
(c) pin length (fractions)
(d) point type
(e) material and protective finish, if required
See the following examples:
EXAMPLES:
(1) Pin, Cotter, ASME B18.8.1, 1/8″X1-1/4″, Extended Prong Type, Steel, Zinc-Plated, ASTM F1941, 8A
METRIC FASTENERS
Pins shall be designated by the following data in the sequence shown:
(a) product name
(b) nominal size
(c) pin length
(d) point type
(e) material and protective finish, if required
See the following examples:
EXAMPLES:
(1) Split Pins, DIN 94, 4X5mm, Steel, Zinc Plated per ISO 4042
Guide 5
Inspection of Pins
Vernier Caliper
Will use vernier calipers to measure the basic dimensions of Pins.
Vickers Hardness Tester
Will use vickers hardness tester(HV) to test the hardness of metric Pins.
Rockwell Hardness Tester
Will use rockwell hardness tester(HRC) to measure the hardness of inch Pins.
Coating Thickness Gauge
Will use coating thickness gauge to measuere the thickness of ZP.
Guide 6
Packaging of Pins
Usual Packaging
Label: black text on white, no pattern and barcode
Carton: standard double corrugated neutral carton, bulking packing, maximum load bearing: 25kg per carton
Pallet: Europe Fumigation Pallet, 36 cartons per pallets, Width 800mm x Length 1200mm
Guide 7
Production Time of Pins
Flow 01: Need 3 Days – Analyze Customers’ PO and Place Orders to the Factory
Flow 02: Need 10 Days – Purchase the Raw Material
Flow 03: Need 15 Days – Make Production Plan and Wait for Starting Production
Flow 04: Need 15 Days – Formal Mass Production
Flow 05: Need 7 Days – Send Out to Do Heat Treatment (if exist)
Flow 06: Need 7 Days – Send Out to Do Surface Treatment (Finish)
Flow 07: Need 7 Days – Packaging, Make the Shipment
Total Time: 60 Days to 70 Days
Guide 8
Inquiry Required Content
Let us know who you are, and we can contact you in time.
We will give you a more reasonable price.
Let us know your needed product well.
Let us know if the products need to do the heat treatment.
Zinc Electoplated or Hot Dip Galvanized Coating or Zinc Flake Coating…
Our MOQ is about 1 pallet (900KGS) per size.
If it is a customized package, we will send the carton/label to you by courier for confirmation before packaging.
We will make a more suitable production plan for you.
FOB (We usually quote based on FOB ), CIF, FCA
This information is important before mass production. We will adjust the production plan according to your requirement.