<a href="
http://www.jinruibolt.com/screws/machine-screw/">Machine Screw Suppliers</a> Countersunk head screw, also known as flat machine screw, its head is a 90-degree cone, similar to common wood screws. On the surface of the mounting hole on the connector, a 90-degree conical socket is machined, and head of the countersunk head screw is in the socket and is flush with the surface of the connector. In addition to countersunk head screws, there are also semi-circle head flat machine screws used in some occasions. This kind of screw is more beautiful and can be used in places where a little protrusion is allowed on the surface.
Flat countersunk head screws are an indispensable necessity in daily life or industrial manufacturing. According to various properties and functions, it is divided into countersunk head socket head cap screws, countersunk head slotted screws, etc.
Production Process of Countersunk Head Screw
Specification of Countersunk Head Screw
Thread d M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24
P0,50,70,811,251,51,75222,52,52,53
a 2掳90掳60掳
0
b l?125mm12141618222630343842465054
125<l?200mm---24283236404448525660
l>200mm-----4549535761656973
c approx.0,20,30,30,30,40,50,50,50,50,50,511
dk nominal=max.681012162024273033363639
min.5,77,649,6411,5715,5719,4823,4826,4829,4832,3835,3835,3838,38
da max.3,64,75,76,89,211,213,715,717,720,222,424,426,4
ds nominal=max.345681012141618202224
min.2,863,824,825,827,789,7811,7313,7315,7317,7319,6721,6723,67
e min.2,32,873,444,585,726,869,1511,4311,4313,7213,721616
k max.1,72,32,83,34,45,56,577,588,513,114
r min.0,10,20,20,30,50,51111111,6
s nominal22,534568101012121414
Q5: How to ensure the safety of long-distance transportation?
A: We pack into cartons first, and then pack cartons on pallets. The pallet is very easy to lift by Forklift wihch will protect the cartons from damage. Professional packing teams which keep every packing safely.
Q6: What products can you customize?
A:One is standard parts, such as DIN933, hex bolts. The other is Non-standard parts. If you want standard parts, you can tell the standard, size, grade(material) ,coating and quantity. For example, you want to buy DIN933, M12X60,grade 8.8, zinc plated and 20000pcs.
If you want non-standard parts, you can show us samples, drawings or detail descriptions. Then our engineer will do the technical drawings for you.
There are many, such as hexagon bolts, flange bolts, round head square neck bolts, as well as track bolts, U-bolts, T-bolts, flat head hexagon bolts, hex nuts, hex flange nuts .
Q7: Can you provide some sample?
A: Samples can be provided as your requirements.Machine Screw Suppliers
website:
http://www.jinruibolt.com/screws/machine-screw/<a href="http://www.jinruibolt.com/screws/machine-screw/">Machine Screw Suppliers</a> Countersunk head screw, also known as flat machine screw, its head is a 90-degree cone, similar to common wood screws. On the surface of the mounting hole on the connector, a 90-degree conical socket is machined, and head of the countersunk head screw is in the socket and is flush with the surface of the connector. In addition to countersunk head screws, there are also semi-circle head flat machine screws used in some occasions. This kind of screw is more beautiful and can be used in places where a little protrusion is allowed on the surface.
Flat countersunk head screws are an indispensable necessity in daily life or industrial manufacturing. According to various properties and functions, it is divided into countersunk head socket head cap screws, countersunk head slotted screws, etc.
Production Process of Countersunk Head Screw
Specification of Countersunk Head Screw
Thread d M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24
P0,50,70,811,251,51,75222,52,52,53
a 2掳90掳60掳
0
b l?125mm12141618222630343842465054
125<l?200mm---24283236404448525660
l>200mm-----4549535761656973
c approx.0,20,30,30,30,40,50,50,50,50,50,511
dk nominal=max.681012162024273033363639
min.5,77,649,6411,5715,5719,4823,4826,4829,4832,3835,3835,3838,38
da max.3,64,75,76,89,211,213,715,717,720,222,424,426,4
ds nominal=max.345681012141618202224
min.2,863,824,825,827,789,7811,7313,7315,7317,7319,6721,6723,67
e min.2,32,873,444,585,726,869,1511,4311,4313,7213,721616
k max.1,72,32,83,34,45,56,577,588,513,114
r min.0,10,20,20,30,50,51111111,6
s nominal22,534568101012121414
Q5: How to ensure the safety of long-distance transportation?
A: We pack into cartons first, and then pack cartons on pallets. The pallet is very easy to lift by Forklift wihch will protect the cartons from damage. Professional packing teams which keep every packing safely.
Q6: What products can you customize?
A:One is standard parts, such as DIN933, hex bolts. The other is Non-standard parts. If you want standard parts, you can tell the standard, size, grade(material) ,coating and quantity. For example, you want to buy DIN933, M12X60,grade 8.8, zinc plated and 20000pcs.
If you want non-standard parts, you can show us samples, drawings or detail descriptions. Then our engineer will do the technical drawings for you.
There are many, such as hexagon bolts, flange bolts, round head square neck bolts, as well as track bolts, U-bolts, T-bolts, flat head hexagon bolts, hex nuts, hex flange nuts .
Q7: Can you provide some sample?
A: Samples can be provided as your requirements.Machine Screw Suppliers
website:http://www.jinruibolt.com/screws/machine-screw/
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