Simpson GCN-MEP - Principles of Proper Fastening; Fastening into Concrete and Masonry

T-SAS-GCNM12 ©2012 Simpson Strong-Tie Company Inc.
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PRINCIPLES AND GUIDELINES FOR PROPER FASTENING
FASTENING INTO CONCRETE AND MASONRY
Materials suitable for fastening into include:
– Poured concrete
– Precast concrete
– Pre-stressed concrete
– Grout-lled concrete block
– Grouted joints
Fasteners derive their holding power primarily from clamping of the concrete around
the fastener. Factors that inuence a fastener driven into concrete include:
– Depth of penetration
– Compressive strength of concrete
– Fastener spacing and edge distance
– Fastener shank diameter
– Concrete aggregate
When operating the GCN150/GCN-MEP, always keep the tool perpendicular to the
work surface. Attempting to install fasteners other than at a 90˚ angle can result in pin
ricochet and cause:
– Injury to the user
– Injury to bystanders
– Damage to the tool
– Damage to the base material or attachment
FASTENER EDGE DISTANCE
Concrete: No less than 3" to nearest free edge.
MINIMUM DISTANCE BETWEEN FASTENINGS
No less than 3"
MINIMUM BASE MATERIAL THICKNESS
Concrete: No less than 3 times penetration depth of the fastener.