Stainless Steel A2/A4 Metric Precision Cylindrical Hex Socket Head
Cap Screws
Similar with countersunk head screw, the socket cap screws are in
greater the strength of the connection, but must use the
appropriate size Allen wrench screw to assemb or disassemb.
Generally used for a variety of machine tools and accessories.
Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind
Energy; Mechanical Machine; Automobile: Home Decorating and etc
Standard socket head cap screws possess a cylindrical head with a
flat, chamfered top surface and a recessed socket drive. The outer
sides of the cylindrical cap are commonly knurled. The cap can be
situated either above the surface or recessed into a counter-bored
hole. Ideal for precision assembly work as well as applications
which require a neat, finished appearance, standard socket head cap
screws offer a clean look along with maximum strength. Standard
head caps are crafted from alloy steel, stainless steel, nickel
alloy and silicon bronze. Available finishes include black oxide,
zinc and plain while the majority of the standard fasteners conform
to ASME B18.3, DIN 912 or Din 912/ISO 4762 specifications. An allen
wrench (hex key) is needed for installation and removal.
| Norminl | Dk Max | K | S | t | Thread Length |
| d | no knurl | knurl | Max | Max | Min | Min | b |
| M1.6 | 3 | 3.14 | 1.6 | 1.56 | 1.52 | 0.7 | 15 |
| M2 | 3.8 | 3.98 | 2 | 1.56 | 1.52 | 1 | 16 |
| M2.5 | 4.5 | 4.68 | 2.5 | 2.06 | 2.02 | 1.1 | 17 |
| M3 | 5.5 | 5.68 | 3 | 2.58 | 2.52 | 1.3 | 18 |
| M4 | 7 | 7.22 | 4 | 3.08 | 3.02 | 2 | 20 |
| M5 | 8.5 | 8.72 | 5 | 4.095 | 4.02 | 2.5 | 22 |
| M6 | 10 | 10.22 | 6 | 5.14 | 5.02 | 3 | 24 |
| M8 | 13 | 13.27 | 8 | 6.14 | 6.02 | 4 | 28 |
| M10 | 16 | 16.27 | 10 | 8.175 | 8.025 | 5 | 32 |
| M12 | 18 | 18.27 | 12 | 10.18 | 10.025 | 6 | 36 |
| M14 | 21 | 21.33 | 14 | 12.21 | 12.032 | 7 | 40 |
| M16 | 24 | 24.33 | 16 | 14.21 | 14.032 | 8 | 44 |
| M18 | 27 | 27.33 | 18 | 14.21 | 14.032 | 9 | 48 |
| M20 | 30 | 30.33 | 20 | 17.23 | 17.05 | 10 | 52 |
| M22 | 33 | 33.39 | 22 | 17.23 | 17.05 | 11 | 56 |
| M24 | 36 | 36.39 | 24 | 19.28 | 19.065 | 12 | 60 |
| M27 | 40 | 40.39 | 27 | 19.28 | 19.065 | 13.5 | 66 |
| M30 | 45 | 45.39 | 30 | 22.28 | 22.065 | 15.6 | 72 |
| M36 | 54 | 54.46 | 36 | 27.28 | 27.065 | 19 | 84 |
Question & Answer
1. Payment : T/T (30% T/T in advance and balance 70% against copy of B/L)
L/C at sight
2. Lead Time : If have stock , can be packing and ship within 10-15 days ,
If not have stock , usually take 25-30 days to produce one
container order .
3. Free Sample : For standard item , we can supply the samples free . courier cost
by the buyer.
For nonstandard item , we will quote the mould charge ineed, but
the mould charge can be return if bulk order released .
4. OEM : We Can produce the drawing according to your drawing or samples
, also can packing the products as customer's request with LOGO and
company information on it
5. How to place a order :
Send inquiry -------quotation --------Confirm order (price ,lead
time , technical detail with drawing and payment ) ---------pay
deposit -------Start to produce after got deposit ---------sample
approve (if need) ------------ass produce -----send picture of
packing for confirm------arrange shippment ---------send copy of
B/L -------------Pay balance payment ----------send the documents
for clearance ----------feedback
6. Anyother question , welcome to contact us anytime .
