Standard | DIN 571 |
Inside Diameter | M4-M20 |
Material | SS304,SS316,SS2205,SS2507,SS410 |
MOQ | 1000 pieces |
Surface treatment | Hot Galvanized,Black,Color-zinc,Blue white zinc |
Package | Plastic bag, Boxes and cartons, Pallets, Customized |
Price terms | EXW, FOB, CIF, etc. |
Payment terms | T/T, Paypal, L/C, Western union, etc. |
Certifications | ISO 9001:2015 |
Note | Free samples but freight cost is paid by customers(when sample is in stock) Sample fee (when samples need to be customized) |
Coach screws are also commonly used for fixing metal plates or concrete posts to timber, and work well when fitted into masonry with a nylon plug.
dimensions in mm
Thread | 4 | 5 | 6 | (7) | 8 | 10 | 12 | 16 | 20 | |
ds | normal size max. | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 16 | 20 |
min. | 3,52 | 4,52 | 5,52 | 6,42 | 7,42 | 9,42 | 11,3 | 15,3 | 19,3 | |
da | max. | 5 | 6 | 7,2 | 8,2 | 10,2 | 12,2 | 15,2 | 19,2 | 24,4 |
k | normal size max. | 2,8 | 3,5 | 4 | 5 | 5,5 | 7 | 8 | 10 | 13 |
max. | 3,1 | 3,88 | 4,38 | 5,38 | 5,88 | 7,45 | 8,45 | 10,45 | 13,9 | |
min. | 2,5 | 3,13 | 3,63 | 4,63 | 5,13 | 6,55 | 7,55 | 9,55 | 12,1 | |
s | normal size max. | 7 | 8 | 10 | 12 | 13 | 17 | 19 | 24 | 30 |
max. | 7 | 8 | 10 | 12 | 13 | 17 | 19 | 24 | 30 | |
min. | 6,64 | 7,64 | 9,64 | 11,57 | 12,57 | 16,57 | 18,48 | 23,16 | 29,16 | |
e | min. | 7,5 | 8,63 | 10,89 | 13,07 | 14,2 | 18,72 | 20,88 | 26,17 | 32,95 |
Tengri fasteners Group is an OEM Fasteners Manufacturing, Plating/ Finishing and Industrial Production Company. Over 30 years of manufacturing stainless steel fasteners, industry experience and construction of state-of-art facility. We can offer the most common stainless steel fasteners or specially designed fasteners to exceed our customer's expectations, as our vendors are the best name brands in the industry.
a) Good after-sale service, all questions will be replied within 12 hours.
b) Customized design is available. ODM&OEM are welcomed.
c) We can provide free sample, consumer should pay the freight first.
d) Convenient transportation and fast delivery, all available shipping ways could be applied, by express, air or sea.
e) High quality and most competitive price.
f) Advanced produce and inspecting equipments.
Packaging & Transportation1.Can I order a small list ?
---Of course, you can.