Bolt & Nut & Washer

Category：Fastener
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Release time：2025-11-05 16:30:03

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Product description

Scope of Supply：

Bolts

Nuts

Washers

API 20E BSL1、BSL2 Bolts and Nuts

Full thread stud bolts

Double-end stud bolts

Hex bolt

U Bolt

Structural bolts

Hexagon socket cap screws

Hex nuts

Heavy hex nuts

Lock nuts

Hexagonal nuts

Plain washer

Spring washer

Square taper washer

Non standard fasteners

Material:

ASTM A193 Gr. B7, B8, B8M, B16

（High Temperature / Pressure Service Bolts）

ASTM 320-L7, L7M, L43, B8CL2, B8M CL1&CL2

（Low Temperature Service Bolts）

ASTM A194 Gr. 2H, 2HM, 7, 7M, 8, 8M

（High Temperature / Pressure Nuts）

Super Alloys Material，including：Hastelloys, Inconels, Monel

Surface Treadment：

Xylan Coating

Xylar Coating

Hot Dip Galvanizing

Sherardizing Coating

Zn-Ni Plating

Dacromet Coating

Zinc Electroplating

Eston specially coated fasteners with Whitford Xylan® series as top coating will provide excellent anti-corrosi, wearresistance and self lubrication, Xylan® coating bolts and nuts are served the field of Oil and Gas.

The main of products

Products Advantage

Quality Assurance

Coating Material

Xylan coating stud bolts & nuts;

Customer incoming products treated with preservatives;

Custom surface treatment.

Less Friction

Dry Lubrication / Anti-galling

Abrasion / Wear Resistance

Corrosion Resistance

Chemical Resistance

Temperature Resistance

Nonstick / Release

Colour.

Visual Inspection

Acid and Alkali Test

Matching Tests

Adhension Test

Film Thickness Test

Coating Hardness Test

Electric Spark Insulation Test

CERAMIC.

XYLAR ® 1

XYLAR ® 2

LUOROPOLYMER

XYLAN ® 1070

XYLAN ® 1424

XYLAN ® 1014

XYLAN ® 1052

Advantage in production：

From the production of bolts and nuts to surface pretreatment and then to the processing of Xylan® coating, all are carried out in one go at Eston factory.