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www.flexco.com• phone: 1-630-971-0150
P R O D U C T H A N D B O O K
General Hook Information
HOWTO SELECT THE PROPER HOOK SIZE
1. Measure the belt thickness and pulley diameter.
2. Determine the possible options that could be used, based on the chart on page 6.
3. Select the proper hook from the specification chart.
4. If hook specifications overlap into more than one size, select the fastener which best meets your
needs.
NOTE:
If maximum strength is of primary importance, choose the hook with the largest
diameter wire. If low profile is needed select the hook with the smallest diameter wire.
5. Select the type of metal which best fits your application requirements.
SPECIAL LENGTH CARDS
Clipper
®
hooks can be ordered in special length cards or Unibar
®
strips for specific applications.
This eliminates time consuming card cutting by hand.
All special length cards are shipped without pins.
Please call Customer Service for pricing and lead times.
FASTENERMATERIAL CHARACTERISTICS
METAL
MAGNETIC
ABRASION
RESISTANCE
CHEMICAL
RESISTANCE
RUST
RESISTANCE
SPARKING/
NON-SPARKING
AVAILABLE
CLIPPER SIZES
Galvanized
Yes
Good
Poor
Good
Sparking
25, 1, 2-7
Coated Steel
Yes
Good
Poor
Poor
Sparking
U2 -U3
Steel
Yes
Good
Poor
Poor
Sparking
U4-U7
High Tensile Steel
Yes
Good to Excellent
Fair
Good
Sparking
1, 2-7
Rectangular
High Tensile Steel
Yes
Good to Excellent
Fair
Good
Sparking
4-1/2
430 Stainless Steel
Yes
Good
Fair to Good
Good
Sparking
1, 2-7, UX-1, U2SP - U7
316L Stainless Steel
Slightly
Good
Good to Excellent
Excellent
Sparking
25, 30, 36, 1, 2-7, UX-1,
UCM36, UA2, UA3
Monel
®
400
Slightly
Fair
Excellent
Excellent
Sparking
25, 1, 2-4
Inconel
®
600
No
Fair
Excellent
Excellent even at
elevated temp.
Sparking
2-4
Phosphor Bronze
No
Good
Poor
Good
Non-sparking
2-4
Hastelloy C-22
No
Good
Excellent
Excellent
Sparking
36, UCM
Black Oxide
Yes
Good
Poor
Fair
Sparking
25