Specialized Screws, We Welcome the Impossible.

The products that appear in this catalog are a mere fraction of the various services offered at e-nedzi.com®.
For special screw types, no matter how difficult, please turn to NBK.

Surface Treatment

Trivalent Chromate
Treatment

Electroless Nickel
Plating

Raydent Treatment

Gold Plating

Silver Plating

Chrome Plating

Nickel Plating

Antibacterial
Treatment

Tuff ride Treatment
(Salt Bath Nitro car-
burizing Treatment)

Chemical Polish

Electro-polish

Gold Coating

Molybdenum
Disulfide Coating

Teflon Coating

Tin Coating

Ferrosoferric Oxide
Coating (Black)

Anodized Aluminum
Coating (White)

Painted-Baked
Head Finish

Material

Special Materials Screws

Titanium

Phosphor Bronze

Ceramic

Molybdenum

Aluminum

Other materials are also available.

Steels:
S45C(≈1045 : AISI), SCM435 (≈4135:AISI), SUJ2 (≈52100:ASTM), SUM22L (≈12L13 : ASTM), SS400, etc.

Stainless Steels:
SUS303 (≈S30300 : ASTM), SUS304 (≈S30400 : ASTM), SUS310S (≈S31008 : ASTM), SUS316 (≈S31600 : ASTM), SUS316L (≈S31603 : ASTM), SUS329J1 (≈S32900 : ASTM), SUS329J3L (≈S31803 : ASTM), SUS403 (≈S40300 : ASTM), SUS420J2, SUS43 (≈S43000 : ASTM), SUS440C (≈S44004 : ASTM), SUS630H1150, SUS630H900, etc.

Aluminum:
A2011 (≈2011 : ASTM), A2017 (≈2017 : ASTM), A2024 (≈2024 : ASTM), A5052 (≈5052 : ASTM), A6061 (≈6061 : ASTM), A6063 (≈6063 : ASTM), A7075 (≈7075 : ASTM), etc.

Nickel Alloy:
Hastelloy (C22/B2/C276), Inconel (600/601/625), Invar, Super Invar, Nickel,etc.

Others:
Pure Molybdenum, Pure Titanium, 6-4Titanium, Oxygen-Free Copper (C1020B≈C10200 : ASTM), Tough Pitch Copper (C1100B≈C11000 : ASTM), Brass(C3604B≈C36000 : ASTM), Phosphor Bronze (C5191), Beryllium Copper Alloy 25, Beryllium Copper Alloy 50, Tantalum, etc.