Carbon Steel Fastener Screws , Nickel Finish Truss Head Book
Binding Screw is combined with a male screw and a female screw and
a truss head with slot or phillips drive for mating screw and flat
head for male screw ; Normally , depth for female screw is same as
the length of threaded length for mating screw , but sometimes, the
threaded length for male screw is longer than the hole depth for
secure more files .
Binding Screw is also known as Chicago Screw , Screw Post , Binding
Post , Sex bolts
We recommend you measure your file thickness first to confirm the
length of post so that binding screws can be operated smoothly .
Normal specification for binding screws are from M2 to M8 based on
Male thread diameter : M2 to M8
Male thread length : 10 to 50
Female overall length : 15 to 50
Finishing : Zinc
Material : Carbon Steel
More specification as following
Note : " L1 " is cnfirmed according to your request .
We provide multiply materials for binding screws as aluminum ,
Carbon steel ,Stainless Steel and Plastic for various uses .
Binding Screw are used to many fields like book binding industry
,finance fields and Medical area and so on .
We offer different finish as zinc , nickel ,brass ,Tin and black
oxide for binding screws .
● Great usefulness and adaptability
● Perfect corrosion resistance
● Assorted specification
● Harden Material
We offer many specifications for binding screws and we accept
customization also , if you are interesting in our binding screws ,
please contact us by phone 86-769-82601418 or email us via