Thank you for your interest and support in our products. For better and easier installation, some specifications are modified. Please kindly refer below detailed information: Modified Product: Linear Motor LMC Series Modified Models: Linear Motor Forcer LMC-EF Series Modification Details: 1. The mounting holes specification of Linear Motor Forcer LMC-EF Series is modified as below: Forcer Models Before Modification After Modification LMC-EFC LMC-EFE LMC-EFF (Forcer) Through hole Blind hole 2. Reference Chart of Mounting Hole Specification of Linear Motor Forcer LMC-EF Series: Forcer Models Before Modification After Modification LMC-EFC LMC-EFC1 2-M4x0.7P THRU(16.4 DP) 2-M4x0.7Px12DP LMC-EFC2 6-M4x0.7P THRU(16.4 DP) 6-M4x0.7Px12DP LMC-EFC3 10-M4x0.7P THRU(16.4 DP) 10-M4x0.7Px12DP LMC-EFC4 14-M4x0.7P THRU(16.4 DP) 14-M4x0.7Px12DP LMC-EFE LMC-EFE1 2-M4x0.7P THRU(16.4 DP) 2-M4x0.7Px12DP LMC-EFE2 6-M4x0.7P THRU(16.4 DP) 6-M4x0.7Px12DP LMC-EFE3 10-M4x0.7P THRU(16.4 DP) 10-M4x0.7Px12DP LMC-EFE4 14-M4x0.7P THRU(16.4 DP) 14-M4x0.7Px12DP LMC-EFE5 18-M4x0.7P THRU(16.4 DP) 18-M4x0.7Px12DP LMC-EFE6 22-M4x0.7P THRU(16.4 DP) 22-M4x0.7Px12DP LMC-EFF LMC-EFF1 2-M5x0.8P THRU(20.6 DP) 2-M5x0.8Px12DP LMC-EFF2 6-M5x0.8P THRU(20.6 DP) 6-M5x0.8Px12DP LMC-EFF3 10-M5x0.8P THRU(20.6 DP) 10-M5x0.8Px12DP LMC-EFF4 14-M5x0.8P THRU(20.6 DP) 14-M5x0.8Px12DP LMC-EFF5 18-M5x0.8P THRU(20.6 DP) 18-M5x0.8Px12DP LMC-EFF6 22-M5x0.8P THRU(20.6 DP) 22-M5x0.8Px12DP LMC-EFF7 26-M5x0.8P THRU(20.6 DP) 26-M5x0.8Px12DP LMC-EFF8 30-M5x0.8P THRU(20.6 DP) 30-M5x0.8Px12DP LMC-EFF9 34-M5x0.8P THRU(20.6 DP) 34-M5x0.8Px12DP LMC-EFFA 38-M5x0.8P THRU(20.6 DP) 38-M5x0.8Px12DP LMC-EFFB 42-M5x0.8P THRU(20.6 DP) 42-M5x0.8Px12DP LMC-EFFC 46-M5x0.8P THRU(20.6 DP) 46-M5x0.8Px12DP LMC-EFFD 50-M5x0.8P THRU(20.6 DP) 50-M5x0.8Px12DP Note 1: The mounting holes pitch of The LMC-EF Series does not change. Note 2: Please screw with appropriate length of screws. Modification Purpose: 1. For better and easier installation 2. The product performance and specification are not affected by this modification. Effective Date of Modification: Aug. 19, 2019 Sincerely, Hiwin Mikrosystem Corp.