PNW Leader
P: 503-233-3330
F: 503-233-6006
Fasteners
Bolts
Hex Bolt
Hex Bolt
Carriage Bolt
Carriage Bolt
Structural Bolts
Structural Bolts
Tap Bolt
Tap Bolt
Hex Flange Bolt
Hex Flange Bolt
Plow Bolt
Plow Bolt
Step Bolt
Step Bolt
Elevator Bolt
Elevator Bolt
Square Head Bolt
Square Head Bolt
Eye Bolt
Eye Bolt
Toggle Bolt
Toggle Bolt
Hanger Bolt
Hanger Bolt
Stove Bolt
Stove Bolt
Bolt Assembly
Bolt Assembly
Nuts
Finished / Heavy Hex Nut
Finished Heavy Hex Nut
Nylon Insert Locknut
Nylon Insert Locknut
Serrated Flange Hex Nut
Serrated Flange Hex Nut
Acorn Nut
Acorn Nut
Coupling Nut
Coupling Nut
Slotted Hex Nut
Slotted Hex Nut
Square Nut
Square Nut
Slotted Hex Nut
Slotted Hex Nut
T-Nut
T-Nut
Wing Nut
Wing Nut
Weld Nut
Weld Nut
Wheel Nut
Wheel Nut
Speed Nut
Speed Nut
 
 
Socket Drive
Socket Head Cap Screw
Socket Head Cap Screw
Flat Socket Head Cap Screw
Flat Socket Head Cap Screw
Button Socket Head Cap Screw
Button Socket Head Cap Screw
Socket Shoulder Bolt
Socket Shoulder Bolt
Pipe Plugs
Pipe Plugs
Cup Point Set Screw
Cup Point Set Screw
Cone Point Set Screw
Cone Point Set Screw
Oval Point Set Screw
Oval Point Set Screw
Dog Point Set Screw
Dog Point Set Screw
Flat Point Set Screw
Flat Point Set Screw
Nylon Tip Set Screw
Nylon Tip Set Screw
Knurl Cup Point Set Screw
Knurl Cup Point Set Screw
Slotted Set Screw
Slotted Set Screw
Square Head Set Screw
Square Head Set Screw
Washers
Flat Washer
Flat Washer
Split Lock Washer
Split Lock Washer
Round Plate Washer
Round Plate Washer
Round Malleable Washer
Round Malleable Washer
Square Washer
Square Washer
Countersunk Finishing Washer
Countersunk Finishing Washer
Shear Plate Washer
Shear Plate Washer
Nylon Washer
Nylon Washer
Belleville Washer
Belleville Washer
External Tooth Lock Washer
External Tooth Lock Washer
Internal Tooth Lock Washer
Internal Tooth Lock Washer
Bonded Sealer Washer
Bonded Sealer Washer
 
 
 
 
Anchors
Wedge Anchor
Wedge Anchor
Sleeve Anchor
Sleeve Anchor
Lag Screw Shield Anchor
Lag Screw Shield Anchor
Hammer Drive Anchor
Hammer Drive Anchor
Drop In Anchor
Drop In Anchor
Tap In U Drive Anchor
Tap In U Drive Anchor
Expansion Shield Anchor
Expansion Shield Anchor
Hollow Wall Anchor
Hollow Wall Anchor
Concrete Screw Anchor
Concrete Screw Anchor
Wood Screw Anchor Sleeve
Wood Screw Anchor Sleeve
Conical Plastic Anchors
Conical Plastic Anchors
Mungo Plug Screw
Mungo Plug Screw
Nylon Nail Anchor
Nylon Nail Anchor
EZ Anchor
EZ Anchor
Eye Coupling Nut Anchor
Eye Coupling Nut Anchor
Nails
Nails
 
 
 
 
 
 
 
 
 
 
Screws
Machine Screws
Machine Screws
Self Tapping Screw
Self Tapping
Drywall Screw
Drywall
Lag Screw
Lag
Self Drilling Screw
Self Drilling
Zirk Fitting
Zirk Fitting
Deck Screw
Deck Screw
Rods & Studs
All Thread Rod
All Thread Rod
Round Bar
Round Bar
Key Stock
Key Stock
B7 Studs
B7 Studs
 
 
 
 
 
 
Pins
Dowl Pin
Dowl Pin
Roll Pin
Roll Pin
Cotter Pin
Cotter Pin
Clevis Pin
Clevis Pin
 
 
 
 
 
 
Adhesives & Lubricants
Anti Seize
Anti Seize
Thread Locker
Thread Locker
Concrete Epoxy
Concrete Epoxy
 
 
 
 
 
 
 
 
Security / Tamper-Proof
Pin-In Socket Head
Pin-In Socket Head
Snake Eye Screw
Snake Eyed S/M/S
One Way Screw
One Way M/S
 
 
 
 
 
 
 
 
Rivets
Key / Bits
Blind Rivet
Blind Rivet
 
 
Hex Allen Key Tool
Hex Allen Key Tool
 
 
 
 
 
 
 
 
MHF Parts & Descriptions
Flange Bolting Reference Chart
Material Grades Available
Alloy 20
Aluminum
B7 & B16
Brass
Inconel
Monel
Nickel Alloys
Silicone Bronze
Stainless Steel
Titanium Alloys
A307
A325
Zinc
Galvanized
Other
MHF Goodies
MHF Goodies
Defining 18-8 Stainless Steel
Unless a specific alloy is required for a defined purpose, selection of an 18-8 or 300 series stainless will result in a more economic fastener with improved availability.
The most common specified stainless steel alloy is 304. Type 304 stainless steel is included in the 18-8 family of stainless steel. The 18-8 family also includes alloys: 302, 302HQ, 303, 303Se and 304L. 316 is not an 18-8, but is generally accepted as an 18-8 substitute. Since it has improved corrosion resistance over the 18-8 family.
The Industrial Fastener Institute (IFI) rates all 18-8 stainless steels as equivalent in corrosion resistance. ASTM Standard F593 and F594 Alloy Group 1 covers 18-8 stainless steels, and places the same minimum physical property requirements on finished products. 316 stainless steel also has the same physical properties as group 1, except with improved corrosion resistance.
Two of the most common reasons to consider specify 18-8 alloy over 304 are:
a. Not all products are as readily available in 304.
b. Most manufactures prefer to use 302HQ rather than 304 due to its better cold forming properties and improved tool life.
For further clarification or information specific to your requirements please contact us direct at MHF.