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Part Number 1389000, Teks® Maxiseal® Steel-to-Steel Self-Drilling Screws - TEKS® 1 ABOT MAXISEAL® CL 1/4-14 X 7/8"

Maxiseal® ... The premium sealing system for Teks® self-drilling, self-tapping fasteners.
  • Teks Drill Point
    • Non-walking, cutting edges, pigtail reduction
    • Engages material faster, drills with less effort, safer installation
  • Integrated washer
    • Provides water tight seal even when driven on an angle
    • Delivers wider installation tolerance and prevents leaks
  • Patented ABOT anti-backout thread form available
    • Reduces Fastener Backout Due to Thermal Expansion and Contraction
    • Fewer Calls Backs
  • Climaseal® coating provides long life protection
    • Coating provides long life protection
    • Fewer replacements



1/4-14 x 7/8''

Point Style

Teks® 1

Drive Style





Carbon Steel

Material Attachment Range


Product Name

Teks® 1 Maxiseal®

Steel Grade


Screw Color

Clima Gray

Head Style

Hex Washer

Head Style

5/16'' HWH Maxiseal

Across Flats (HWH)

5/16 "

Installation Tool

5/16" Driv-Tru™ Socket (1513910)

Screw Diameter


Threads Per Inch


Thread Size

1/4 "

Thread Style

Anti-Backout Thread Form (ABOT)

Length Under Head to Point

7/8 "

Max. Material Attachments

0.320 "

Drill & Tap Capacity

.018-.095 "

Tensile Strength

4,060 lb

Shear Stress

2,600 lb


150 in·lb

Product Family

Teks® Maxiseal 1/4

Box Quantity


Carton Weight

41.53 lb

Country of Origin

Produced in Taiwan

Washer Size

9/16" O.D. Integral System

Washer O.D.

9/16 "

Washer O.D. Decimal

0.42 "

Washer Style

Integral System


Select Sizes Available with P3 Powder Paint.


2019 Buildex Brochure for Teks® 1 to 3 Maxiseal® Steel-to-Steel Self-Drilling Screws and Maxiseal® Tapper Metal-to-Metal Self-Piercing Screws
(PDF, 194KB)

Teks 1 DWG

Teks 1 DXF

Teks 1 IGS

Maxiseal Integral Washer DWG

Maxiseal Integral Washer DXF

Maxiseal Integral Washer IGS