McMaster-Carr 92785A334 不锈钢高锁紧锥端紧定螺钉10-32×3/8" 18-8
McMaster-Carr 95345A071 带内齿垫圈不锈钢盘头螺钉8-32×3/8"
McMaster-Carr 7513K383 钢导管变径垫圈,适配中厚壁钢管 1-1/2"转 1"