5/16 x 6 in. SPAX Washer Head Exterior Lag, HCR, T-Star - Qty:250

5/16 x 6 in. SPAX Washer Head Exterior Lag, HCR, T-Star - Qty:250

Goodbye Conventional Lags!

SPAX PowerLags offer the largest selection of code-recognized structural wood-to-wood fasteners in the industry. Featuring SPAX patented thread technology, they require no pre-drilling, and drive faster and easier than conventional lags and other structural screws

The Torx Recess fastener has been an automotive industry standard for many years now.

Torx is a patented brand name for a six-pointed drive pattern developed in 1967 by Camcar Textronic. The Generic name is Start Drive is commonly used instead of the Trade Marked Torx to identify the six lobed drive system. Other companies have branded their own particular six-lobbed drive system like Spax has a T-Star and T-Star Plus. By design, the six lobbed drive resists Cam-Out better than Phillips (Phillips is designed to Cam-Out to prevent over torquing) and slotted head screws.

Sizes are numbered and all start with a "T-" and range from 1 to 100. Starting with T-1 to T-10 they step up by increments of 1. From T-10 to T-45 they step up in increments of 5 and from T-50 to T100, they step up in increments of 10.

SPAX® T-STAR®: The driving surfaces of the T-STAR force application are arranged in the shape of a star and run vertically, simplifying tool insertion and ensuring a firm grip. This force application shape puts an end to the cam-out effect. The contact force during fastening is reduced to a minimum and high torques can be transmitted to the screw without damaging it or the tool.

SPAX® 4CUT® point: The 4CUT® point enables fastening without pre-drilling (depending on the wood). This is achieved through its special screw tip. The arrow shape pushes through the fibres of the wood, ensuring a fast grip. This effectively prevents the material from splitting and reduces the insertion moment. For hard woods, we recommend pre-drilling even when using SPAX with 4CUT.

Deep Thread: Characterized by a reduced diameter shank resulting in a deep thread profile. A single lead thread, meaning that one revolution advances the screw one pitch. (Pitch is equal to 1 divided by the number of threads per inch. For a screw with 10 threads per in., one revolution will advance the screw 1/1O in. into the wood.)

The deep thread form provides superior resistance to pull-out. This design feature is commonly called a Lo-Root® or Production Screw.

FEATURES:

• Low-profile, large diameter head design allows for outstanding clamping force and improved aesthetics
• Deep T-Star drive offers excellent bit engagement without requiring a "special" driver bit
• HCR Coating is approved for use in treated lumber
• Code listings ICC-ES No. ESR-1782
• Technical evaluation report 1711-01 deck ledger application
• Heat treated to Grade 5 durability
• Patented thread serrations require up to 40% less driving torque to increase installation speed while helping prevent cracking in logs
• Built-in washer head designs eliminate the need and extra cost of a separate washer

German Designed - Made in USA.