ICF Forming Screws

Name: ICF Forming Screws
Brand: Clearco Fasteners

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Clearco’s ICF Forming Screws are purpose-built for concrete forming applications, especially in insulated concrete form (ICF) construction. Each screw features a loose washer design that allows the wood to be drawn tightly together without the screw head sinking into the wood—ideal for locating and removing the screw after concrete is poured. While optimized for ICF blocks, these screws perform reliably in any concrete forming setup, offering versatility across job sites

Whether you're working with ICF walls or tackling traditional concrete forming, these screws deliver reliable performance across the board. Their hardened, zinc-galvanized construction ensures long-term strength, while the coarse thread bites cleanly into foam, plastic webs, or wood. Built for repeat use and available in multiple lengths, Clearco’s ICF Forming Screws are a go-to solution for pros who need dependable fastening in any forming application.

NOTE: The 1 3/4" and the 2" Screws come in multiples of 500 and 3" Screws come in multiples of 400.

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Fast & easy to install
Less expensive than ordinary ledger connectors
Revolutionary double-cylinder bolt technology
Ledger bracket, bolt & washers are supplied
Template for marking out bolts is supplied
No drilling through steel plates
ICFWL designed for 1 1/2 & 1 3/4 wood ledgers
25% higher capacity than other brand ledgers

The following spacing tables are an alternative to the ICFWL spacing to replace anchor bolts tables or allowable loads. They give the spacing of the ICFWL Ledger Connectors based on the allowable vertical load of the connector, the load on the floor and the span of the joists. The designer must determine the design load, the ledger design and the joist design. This table is useful if the designer already has loads and spans, but not necessarily anchor bolt spacing.

*Values in the cells highlighted represent the maximum allowable spacing of 48".

Spacing tables address vertical load applications only. If the connection is designed to resist simultaneous lateral loads, spacing may decrease. Contact Burmon Building Products for additional information.
Values shown are maximum spacing distances (in.) based on simple span, uniformly loaded conditions and do not consider condentrated loads.
Joist and ledger are to designed by others.
Allowable loads are based on testing, with no further increases allowed.

Allowable Load Table - Ledger Bracket -_

Fasteners for wood ledgers provided with part
Loads apply to ICF foam thickness of 3 1/4" or less (For Thickness over 3 1/4 please contact us)
Concrete should have a minimum compressive rate of f'c = 2,500 psi (17.25 MPa)
The bolts of a BURMON-ICFWL must be no closer than 4 inches to the top of wall.
*When attaching a deck to an ICF wall, place one 1/2" x 3 1/2" hex bolt into each cylinder bolt hole as shown

NOTE:

The Allowable Load Table is calculated in accordance with ASTM D7147-11 Section 13, the allowable downward load is calculated as the lesser of:

The lowest ultimate load per hanger divided by 3.
The average, over each hanger in each specimen, load that produces a vertical deflection of 0.125 inches at the bottom of the hanger with respect to the wall, Refer to Intertek Engineering report K9541.01-119-42 RO for test results.

5.* 1/2"x 3 1/2" Hex Bolt placement

Fasteners for steel ledgers provided with part #SLB
Minimum Steel ledger thickness is 16 gauge, 54mm steel ledger
Loads apply to ICF foam thickness of 3 1/4" or less.
Concrete should have a minimum compressive rate of f'c=2,500 psi (17.25 MPa)
The bolts of BURMON-ICFSL must be no closer than 4" to the top of wall

NOTE:

The Allowable Load Table is calculated in accordance with ASTM D7147-11 Section 13, the allowable downward load is calculated as the lesser of:

The lowest ultimate load per hanger divided by 3.
The average, over each hanger in each specimen, load that produces a vertical deflection of 0.125 inches at the bottom of the hanger with respect to the wall. Refer to Intertek Engineering report K9541.01-119-42 RO for test results.

The Designer may specify different spacing based on load requirements. It is recommended to space the components at multiples of the joist spacing to help reduce the chance of interference with the joist hangers.
Spacings are based upon the perpendicular to grain capacity of a bolt in a wood ledger compared to tested value of ICFWL.