Service and Repairs

PrimeSource Building Products, Inc. is the importer of record for Pro-Twist ™ brand construction
fasteners. All of our fasteners are tested in accordance with and meet all criteria stated in ICC ES
AC 118 “Acceptance Criteria for Tapping Screw Fasteners.”
ICC ES AC 118 references and specifies the following documents:
ANSI/ASME B 18.6.4
SAEJ78
ASTM A370
ASTM B117
ASTM C954
ASTM C1002
ASTM C1513
AISI Test Methods for Mechanically Fastened Cold-Formed Steel Connections (S904)
All drywall sharp point screws meet or exceed ASTM C-1002 and ASTM C-1513 requirements for
corrosion resistance and performance.
All self-drilling screws meet or exceed ASTM C-954 and ASTM C-1513 requirements for
corrosion resistance and performance.
Pro-Twist ™ brand self-drilling screws are covered under ICC-ES Evaluation Report #
ESR-1408.
Pro-Twist ™ brand construction fasteners are baked per ASTM B-850 to prevent Hydrogen
Embrittlement.
All zinc plated screws conform to ASTM F-1941 for corrosion resistance, as tested in accordance
with ASTM B-117.
Pro-Twist ™ brand construction fasteners conform to the Industrial Fasteners Institute (IFI)
specifications for tapping screws published in 2003, Seventh Edition, Section H, Pages H-1
through H-88.
Pro-Twist ™ brand construction fasteners are manufactured in ISO 9001 certified and approved
mills in Taiwan, Malaysia and China.
Grip-Rite™ brand collated screws are assembled using Pro-Twist ™ brand construction fasteners with
plastic, tool-feeding collation strips. All Pro-Twist™ standards and specifications are applied to these
fasteners.
M.S.D.S. STATEMENT: All products manufactured for PrimeSource Building Products are of a
non-chemically hazardous nature.