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Inch Series TAPTITE 2000® Screws and Bolts

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TAPTITE 2000® thread forming technology joins two unique concepts and advances fastener performance to new levels. TAPTITE® 2000™ fasteners afford end-users with enhanced opportunities to reduce the overall Cost of Assembly.

TAPTITE 2000® fasteners are designed to provide the benefits of prior Taptite® fastener products with an innovative new thread design - the Radius Profile™ Thread. The proven Trilobular™ principle is maintained while incorporating the Radius Profile™ thread. The result is a new generation of TAPTITE 2000® fasteners, which provides excellent mechanical, assembly, and ergonomic characteristics surpassed by no other technology.


TAPTITE 2000® bolts perform well in large diameter sizes in deep thread engagements. In the past, the limitations of case-hardened products restricted the exploitation of in-place cost savings for larger diameter Trilobular™ fasteners. However, TAPTITE 2000® screws and bolts are available with 3 different types of heat treatment: CORFLEX®-I, CORFLEX® N, and case hardened, making the fasteners adaptable to a wider variety of applications.

CORFLEX®-I Heat Treatment - CORFLEX®-I TAPTITE 2000® bolts are neutral hardened to grade strength, metric 8.8, 9.8, 10.9 or any intermediate value. The thread forming zone is selectively induction hardened in order to form threads in untapped nuts.
CORFLEX®-I heat treatment allows TAPTITE 2000® thread rolling bolts to provide in-place cost savings in large structural applications with strength, ductility and toughness equal to grade strength machine screws or bolts. CORFLEX®-I heat treatment to Grade 10.9 level is standard for TAPTITE® 2000® bolts in sizes M6 (1/4") and larger.

CORFLEX®-N Heat Treatment - CORFLEX®-N TAPTITE 2000® fasteners are neutral hardened to grade 10.9 strength level. CORFLEX®-N products are designed to be used in "soft white" metals such as aluminum or zinc alloys. CORFLEX®-N heat treatment can be specified for any size TAPTITE 2000® screws or bolts that are intended to be used in aluminum or zinc alloys.

Case Hardening - Case hardening is the standard heat treatment for all TAPTITE 2000® screws in sizes M5 (#12) and smaller.

Pin-point precision of high hardness zone in axial section of a CORFLEX®-I fastener is shown by the crescent shaped areas in this chemically etched mount.



Items  Request Information

  Item # Screw Size Nominal C Dimension Nominal D Dimension Max. Point Cp
item-1112 2-56 in 0.086 in 0.084 in 0.077 in
item-1113 3-48 in 0.099 in 0.097 in 0.088 in
item-1114 4-40 in 0.112 in 0.110 in 0.098 in
item-1115 5-40 in 0.125 in 0.123 in 0.111 in
item-1116 6-32 in 0.138 in 0.135 in 0.121 in
item-1117 8-32 in 0.164 in 0.161 in 0.147 in
item-1118 10-24 in 0.190 in 0.186 in 0.167 in
item-1119 10-32 in 0.190 in 0.187 in 0.174 in
item-1120 12-24 in 0.216 in 0.212 in 0.193 in
item-1121 1/4-20 in 0.250 in 0.245 in 0.220 in
item-1122 5/16-18 in 0.313 in 0.307 in 0.279 in
item-1123 3/8-16 in 0.375 in 0.369 in 0.337 in
item-1124 7/16-14 in 0.438 in 0.431 in 0.394 in
item-1125 7/16-20 in 0.438 in 0.433 in 0.407 in
item-1126 1/2-13 in 0.500 in 0.492 in 0.453 in

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