Kelp lab · Specimen ledger
Lab carousel
Tide frame
Lab notes
Wave shelves · perforated field sheets
Description
1 4 20 x 3 4 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (4,000) 3 4 10 Hex Cap Screws 18 8 Stainless Steel #30 Heavy Duty Drill Bit #30 Heavy Duty Drill Bit Stubby Length Screws with a diameter over 1 ½ inches have a hardness rating of HRB 95 HRC 35
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