GPS and GNSS for Land Surveyors, Fifth Edition

8-11X1 3/4 Square Phillips Drive Round Washer Deep Thread Type17 2/3 Thread Black Oxide - ECS-0828DXRW17B

Ranstac 1/2x2 Square Plate Washers 304 Stainless Steel Flat Pad Spacer Gasket for Hardware Fastener for Construction and Industrial Equipment 10pcs HS/DP-14

Hicarer 12 Pcs 3" x 3" Carbon Steel Square Washer Plate Fits 1/2" Bolt Heavy Duty Flat Square Washers 3 mm Thick Anti Loosening Plate Fastener for Construction and Industrial Equipment

20 Pcs Galvanized Square Plate Washers 1/2" ID x 1-5/8" x 1-5/8" OD, 3 mm Thick, Galvanized Carbon Steel Flat Washer Fastener for Construction and Industrial Equipment

Pelopy 10-Pack Galvanized Square Washers Plates, 5/8 ID, 3.75 x 3.75 Od, 3/16 Thick, Heavy Duty Steel Flat Washers, Plates for Anchor Bolts Rods, Construction Industrial Equipment Fasteners

(50) Galvanized Malleable 3/4 Square Bevel Washers I-Beam Flange Wedge

(20) Galvanized Malleable 1 Square Bevel Washers I-Beam Flange Wedge 1"

(100) Galvanized Malleable 1/2 Square Bevel Washers I-Beam Flange Wedge