Tall Clamping Bolt Set For 1000 Extractor Clamping Bolt Set for use with the 1000 Extractor. Use only with the optional 1000G3 Cylinder Ring, 1-7/8" tall. Bolt length: 4.5 inches. Soil | Soil Moisture Measurement | Soil Moisture Add to Enquiry Cart Specifications Weight 4.48 lbs