Product Specification
Allen CSK (MM)
lS: 6761, DIN : 7991 · Metric: 4MM-20MM mm · Inches: BSW / BSF inches · Class 10.9
Product Image
Overview
Engineered for demanding OEM and industrial applications, our Allen CSK Screws are manufactured to deliver precision, strength, and consistent performance at scale. Featuring a flush countersunk head and high-precision internal hex socket, they are designed for secure, space-efficient assembly where dimensional accuracy and dependable fastening are critical. Manufactured under stringent quality controls to ensure reliable, batch-to-batch consistency.
Size
Thread Tolerance
Threads will conform to class 6g6g of lS : 4218, Coarse Series
Technical Details
|
Dimension |
Description |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M16 |
M20 |
|
Pitch |
Thread Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2.5 |
|
A Max. |
Head Diameter |
8 |
10 |
12 |
16 |
20 |
24 |
30 |
36 |
|
F Min. |
Fillet |
1.49 |
1.86 |
2.16 |
2.85 |
3.6 |
4.3 |
4.89 |
5.6 |
|
H Ref. |
Socket Depth |
2.3 |
2.8 |
3.3 |
4.4 |
5.5 |
6.5 |
7.5 |
8.5 |
|
R Ref. |
Radius |
0.7 |
0.7 |
0.85 |
1.2 |
1.5 |
1.85 |
1.85 |
1.85 |
|
W Nom. |
Socket Size |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
|
L Max. |
Thread Length |
30 |
35 |
40 |
45 |
55 |
60 |
70 |
100 |
Standards
lS: 6761
DIN : 7991
Property Class
10.9
Material
JSW Usha Martin, Tata Steels, Bhushan Steels
Finish Options
Auto Black
Zinc Plated
Golden plated & as per customer requirement
Series Available
Metric: 4MM-20MM
Inches: BSW / BSF
Proforma invoice within 48 hrs · SGS / BV
inspection on request